WATCH: Katy Perry's SNL performances

Katy Cats, look who was on 'Saturday Night Live'.

SNL shared the news ahead of the weekend on Twitter that Katy Perry would be the musical guest on the hit US TV show.

Katy performed her new song with Alesso 'When I'm Gone' on the show:

As well as performing a beautiful stripped-back version of “Never Really Over":

Can she appear on SNL more often, please?