Celebrity Pictures: Keira Knightley, Spencer Matthews, Madonna

Today's celebrity pictures include The Bachelor's Spencer Matthews enjoying a flirtation with model Madeline Mulqueen at The Wright Venue in Dublin.

In London, Chelsee Healey wears a pair of black hotpants to singles night at Rose nightclub along with former X Factor contestant Misha B.

Across the pond in LA, Adam Levine and his current model girlfriend Behati Prinsloo enjoy lunch together, and Vanessa Hudgens plays with her phone after a workout at the gym.

Meanwhile in New York, Keira Knightley pouts for the camera as she continues to film Can a Song Save Your Life?, and Hollywood actress Susan Sarandon and her reported 34-year-old boyfriend take a stroll in Manhattan.

And in Moscow, Madonna wears thigh high rubber boots as she attends the launch of the Hard Candy Fitness Club.