The couple kick off a joint celebration in Los Angeles. Plus: Britney Spears, Kevin Federline and more

14 of 17

SUGAR RUSH

How sweet it is! Nick Lachey gets served a super-sized treat by the Snickers "Satisfaction Sing-Off" winner Michael Beaudoin at L.A.'s House of Blues on Wednesday. The singer, who celebrates his 33rd birthday Thursday, helped judge the competition.