Pink and her husband, motocross racer and former "The Surreal Life" star Carey Hart, have ended their two year marriage, according to the singer's publicist.

The two have separated yet remain the closest of friends, Pink's spokesperson told People. Pink and Hart met at the 2001 X Games and, after a brief split in 2003, the singer popped the question as Hart drove the track during a race at Mammoth Lakes, CA. The two married in January 2006 in Costa Rica. Rumors of marriage trouble surfaced in Aug. 2007, but were dismissed by Hart as "just a bunch of trash talk," according to People.