Katy Perry will be supported by Rebecca Black on The Lifetimes Tour

Katy Perry will be supported by Rebecca Black on 'The Lifetimes Tour'.

The 'Firework' hitmaker was a surprise guest at the 'Friday' singer's concert at the El Rey Theatre in Los Angeles on Saturday night (08.03.25), with the pair joining forces on a rendition of Perry’s 2011 hit 'Last Friday Night (T.G.I.F.)' – 14 years after Black made a cameo in the music video.

Perry proposed to Black, getting down on one knee to ask if she would open for her on the jaunt.

She asked her: "Will you…”

Asking for clarification, Black said: "Marry you?"

To which, Perry replied: "Kinda, join me on the Lifetimes Tour?"

The excited singer agreed: "Yes, yes, yes."

Perry later posted to Instagram: "About to spend a lot more Fridays with @msrebeccablack.

"WELCOME TO THE LIFETIMES TOUR BABES."

The carousel included a clip of Perry sharing the tale of how Black came to appear in the ‘Last Friday Night’ promo.

She recalled: "Rebecca and I both love Fridays.

"So that's why I asked her to be in this music video because Friday is like my favourite day of the week, and it's her favourite day of the week.”