"The Voice" alum Christina Aguilera gave fans and a fellow entertainer a huge surprise that generated quite the frenzy.

winning a Grammy Award for Best New Artist in 2000 and holding multiple No. 1 songs, as well as No. 1 album. Reminisce with ...

Christina Aguilera and Sabrina Carpenter are one dynamic duo! The five-time Grammy-award winner, 43, made a surprise ...

Aguilera, 43, strutted into the venue, wearing a black bustier and over-the-knee silver boots while performing a vocal riff ...