Christina Aguilera: 'The Voice' at The Grove!

Christina Aguilera holds hands with her boyfriend Matthew Rutler as they head to Osteria Mozza for dinner on Monday (November 5) in Los Angeles.

That same evening, the 31-year-old singer was joined by Cee Lo Green, Adam Levine, and Blake Shelton as they made an appearance at The Grove to promote The Voice on Extra.

PHOTOS: Check out the latest pics of Christina Aguilera

FYI: Christina is wearing Frankie B jeans, Chaser t-shirt, Nasty Gal jacket, Christian Louboutin pumps, and jewelry by Roseark and Loree Rodkin. Adam is wearing a Riviera polo shirt by Sunspel.

10+ pictures inside of Christina Aguilera and others promoting The Voice at The Grove…