Demi Lovato Celebrates Boyfriend Wilmer Valderrama's Birthday 

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Demi Lovato Celebrates Boyfriend Wilmer Valderrama\'s Birthday

Demi Lovato helped boyfriend Wilmer Valderrama ring in his 35th birthday with a surprise party earlier this week at Palms Thai restaurant in Los Angeles.

The couple were surrounded by friends, including a mini reunion of

cast members Ashton Kutcher and Mila Kunis. Sounds like they got a babysitter for their little Wyatt while they enjoyed a night out.

An eyewitness at the restaurant told Us Weekly, "They were definitely celebrating and enjoying themselves. Wilmer got there later, giving his friends a chance to get there first. He was surprised!"

Video has surfaced from the shindig showing party guests singing "Happy Birthday" and Demi singing "Too Close."

Looks like everyone had a great time! Demi took to Instagram to share pics of her and Wilmer over the years, writing: "Here\'s to many more incredible years together. Happy Birthday my love.... I love you"

Here\'s to many more incredible years together. Happy Birthday my love.... I love you ❤️❤️❤️

Demi Lovato cantando parabéns para o Wilmer

Wilmer com a namorada Demi Lovato e amigos em sua festa de aniversário

Demi goes wavy with side swept bangs

Such a cute look with hair and makeup

WEST HOLLYWOOD, CA - AUGUST 01: Demi Lovato attends the 2013 Television Critics Association\'s Summer Press Tour - FOX All-Star Party held at the Soho House on August 1, 2013 in West Hollywood, California. (Photo by JB Lacroix/WireImage)

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