08/21/2012 AT 6:00 AM ET
A handful of Dancing with the Stars alums and pros acted like one big, happy family on Sunday night.
Julianne Hough, Derek Hough, Chelsie Hightower and Ricki Lake joined Karina Smirnoff to support her former partner Gavin DeGraw at his concert at the Greek Theatre in Los Angeles.
“At @GavinDeGraw concert with the gang!” Smirnoff Tweeted, along with a photo of the group. “Woo hoo!”
Following the show, the gang made their way to the Living Room Lounge at the W Hollywood for the hotel’s popular Sunday Jazz Series, where Kenny G, Kellan Lutz, Ashley Greene, Lucy Hale and fellow former DWTS contestant Michael Bolton were all on hand as well.
“Julianne gave Gavin a lap dance,” an onlooker tells PEOPLE. “It was in front of her brother and their whole DWTS crowd!”
– Michele Stueven
— People magazine (@peoplemag) August 7, 2012