Denise Truscello / WireImage 1 / 4
Denise Truscello / WireImage 1 / 4

Selena Gomez opened up her Revival Tour in Las Vegas on Friday, May 6, and celebrated with a big after party at the end of the night. And guess which of her celebrity pals came out to party with her? Brace yourself, ladies ... It was Orlando Bloom!

The hunky star joined his "Same Old Love" singer pal at Light Nightclub to celebrate her tour kickoff. But his current flame Katy Perry was missing from the picture ... Hmm.

A source at Us says that Selena spent most of the night dancing with her gal pals in a VIP section.

She didn't even seem to mind when her ex-boyfriend Justin Bieber's song "Sorry" came on.

She and Orlando Bloom, who've hung out before, are reportedly just good friends.

Towards the end of the night, People reports that she took the mic: "They want me to say something. I don't know what to say. I'm so happy you came out to party with me. Thank you all so much. God bless."

This marks the 23-year-old's first ever club appearance in Vegas. She'll now continue on with fulfilling her 75 concert dates on the rest of the Revival Tour.