The England ace was feted by VIPs including actor SAMUEL L JACKSON, High School Musical heart-throb ZAC EFRON, Victorias Secret model ADRIANA LIMA, Heroes beauty HAYDEN PANETTIERE, 24 star KIEFER SUTHERLAND and singer FERGIE.
Meanwhile Portuguese poser Ronaldo, who inherited Becks famous No7 shirt at Manchester United, hobbled away to the after-show party and rested up on a sofa.
Becks, 33, and wife VICTORIA, 34, had already wowed red carpet crowds at the ESPY sports awards in Hollywood.
He wore a dark suit while Posh shone in a pale yellow Roland Mouret dress, AUDREY HEPBURN-style hairdo and sunglasses.
But Ronaldo, recovering from ankle surgery, scored a style own-goal in a Miami Vice-style cream suit with white shirt and belt.
Inside the Nokia Theatre, Becks now playing for Los Angeles Galaxy was named Best Major League Soccer Player. That prompted good-natured teasing by host JUSTIN TIMBERLAKE.
The singer held his thumb and index finger an inch apart and joked: Single-handedly you made soccer in America this much more popular. I call it soccer because in America we already have a game dudes play called football.
Posh fell into fits of giggles as Justin bent down and kissed heavily-sponsored Becks foot, and announced: Thats what $250million dollars tastes like.
Timberlake, 26, also donned a blonde wig to lark about behind a cardboard cut-out of actress JESSICA SIMPSON.
Meanwhile Becks, 5ft 11ins, posed for pictures with fellow award-winner CANDACE PARKER a towering 6ft 4ins.
The basketball star said later: Im just excited I got to meet David Beckham. I love him.
Ronaldo had been nominated for Best Male International Athlete by the ESPN sports network but left empty-handed.
The prize was picked up by funnyman WILL FERRELL on behalf of injured golfer TIGER WOODS.
Ronaldo, 23, consoled himself at the party by laying back on a sofa, knocking back drinks and flirting with a string of girls.
A fellow guest at trendy club Vibiana said: He looked pretty pleased with himself. Girls were feeding him vodka c**ktails and nibbles as he rested his ankle.
It was Ronaldos SECOND night on the tiles since jetting to LA. He is likely to be out of football until October.
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