Biel rented out the ultra exclusive Penthouse suite at the Roosevelt Hotel in Hollywood yesterday and transformed the room with flat-screen televisions brought in especially for the festivities.
100 of their closest friends and family, including both their parents, showed up for the party and feasted on gourmet buffalo wings, pizza, mini sliders and red velvet cupcake.
"Justin was totally blown away when he walked in. He had no idea," a source told People magazine. "They held hands and relaxed," says a guest. "They seemed very happy together."
Apparently Biel even visited the room several times throughout the weekend to make sure everything was coming together perfectly. What a great girlfriend! With V-day right around the corner, JT might have to up his game this year.