Katy Perry partied the night away after wrapping up her Las Vegas residency this weekend.

The 39-year-old singer and her partner Orlando Bloom joined The Chainsmokers at the DJ XS Nightclub booth at Wynn Las Vegas on Saturday night (November 4). Just hours ago, Katy performed the final show of her Play residency at Resorts World.

At one point, Katie was sitting in the DJ booth and put her feet up in the air! Check out some interesting photos in the gallery. Alex Pall and Drew Taggart of The Chainsmokers were both there.

Katie had a special audience seat at the final screening of her residency and was moved by the video.