Singer Christina Aguilera (search) accidentally cut her arm at home and has been forced to wear a cast and sling, her publicist said.

Aguilera, 24, sliced two tendons in her arm two weeks ago when she picked up a piece of glass from a vase her dog knocked over and broke in her Los Angeles-area house, publicist Jill Fritzo said Friday.

Aguilera, whose hits include "What a Girl Wants" and "Genie in a Bottle (search)," has been photographed lately sporting a cast and sling.

"Her arm is in a cast because of the way it has to heal," said Fritzo.

Aguilera became engaged to music executive Jordan Bratman (search) in February, and nabbed a third Grammy last year for female pop vocal performance on the ballad "Beautiful."