Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Noah Cyrus performs onstage during Katy Perry's "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.
Katy Perry performs onstage during her "Witness: The Tour" tour opener at Bell Centre on September 19, 2017 in Montreal, Canada.