Lisa Marie Presley: Alex Pettyfer Birthday Dinner with Riley Keough!

Lisa Marie Presley, her husband, musician Michael Lockwood, and her daughter, actressRiley Keough, dine at Madeo’s on Tuesday night (April 10) in Beverly Hills, Calif.

The 44-year-old singer-songwriter celebrated the 22nd birthday of Riley‘s rumored fiance Alex Pettyfer.

PHOTOS: Check out the latest pics of Lisa Marie Presley

Also in attendance were Riley‘s father, musician Danny Keough, and her younger brother, Ben.

“Riley and Alex sat next to each other and looked like they were having a great time,” a spywitness reveals to JustJared.com. “Alex seemed really happy to be celebrating his birthday with everyone.”

Lisa Marie just released her latest song, “You Ain’t Seen Nothin’ Yet” off of her forthcoming album, Storm & Grace, due out May 15.

10+ pictures inside of Lisa Marie Presley at Madeo’s…