Carey Hart and Pink by Steve Granitz/ Carey Hart and Pink by Steve Granitz/

Pop singer Pink and motocross standout Carey Hart are ending their two-year marriage.

Hart, a former Surreal Life cast member, dismissed rumors of relationship trouble last year, but Pink's publicist, Michelle Schweitzer, made an official announcement today.

"This decision was made by best friends with a huge amount of love and respect for one another," she told People. "While the marriage is over, their friendship has never been stronger."

The raspy-voiced diva met Hart at the 2001 X Games, and the couple married in a January 2006 ceremony in Costa Rica. - Adam Bryant