Cameron Diaz and Alex Rodriguez
Pacific Coast News; James Ambler/Splash News Online
01/21/2011 at 03:00 PM EST
and Alex Rodriguez
, dancing and laughing the night away at the home of Miami Heat
coach Pat Riley
in Gables Estates, Fla., at an event to raise money for local charities. "They looked so happy and sweet together," an onlooker tells us of the inseparable duo. They ate, drank and mingled with the basketball player guests and showed off their dance skills to tunes like "Ain't No Mountain High Enough" performed by Michael McDonald
. "Cameron is an amazing dancer," the onlooker adds. "She rocked the dance floor."
and beau Olivier Martinez
, browsing the Los Angeles Art Show together
with a group of friends. Berry had her arm draped around Martinez while checking out the art, but otherwise kept the PDA dialed down. The group seemed to focus on finding art for Berry to buy during the visit.
, tearing up as he saw his grandmother, daughters and friends at a surprise birthday bash thrown for him by fiancée Evelyn Lozada
. When the couple arrived in their SUV, two samba dancers greeted him and threw rose petals at his feet. Once inside, the athlete greeted his family and friendly emotionally, then enjoyed the evening, which featured a video montage which featured well-wishes by celebrity pals like Keri Hilson
and wife Lara Embry
, making it a date night at an Elton John
benefit concert for the American Foundation for Equal Rights at a private estate in Beverly Hills. Also joining her in the audience: her Glee
costar Matthew Morrison
Newlyweds Chris Hemsworth
and Elsa Pataky
kicked off their Sundance Film Festival visit in Park City, Utah, at Tao at the Samsung Galaxy Tab Lift along with Chris's younger brother, and Miley Cyrus
's ex, Liam
. "Elsa and Chris were very cute," says an onlooker. "They were stealing kisses in their banquet." Liam, meanwhile, had a slew of female admirers eyeing him but mostly kept to himself.
By PAUL CHI, JENNIFER GARCIA, LESLEY MESSER and JESSICA WEDEMEYER