Little Xtina, little black dress! Christina Aguilera is evidently not done with her body makeover. Showing off a skinnier, more toned body over the past several months, the pop star, 32, looked even tinier during a Wednesday, Sept. 18 appearance on The Tonight Show with Jay Leno. Talking up her return to the The Voice for its fifth season, the "Drrrty" singer wore a short, low-cut black dress that accentuate her lean legs and cinched waist.
Rocking a curly blonde bob haircut, Aguilera told Jay Leno that rejoining the gang at The Voice is "like coming back to school. The boys are fun!" she gushed of Blake Shelton, Adam Levine and Cee Lo. "There's something about the four of us getting together. We can't be serious for more than 30 seconds. The guys make me laugh!"
Showing off her slighter frame in a revealing Maxim spread recently, Aguilera demurred that she doesn't focus too much on being sexy. "I'm such a down-to-earth girl, I'm comfortable in just a jersey and boy's underwear," Aguilera tells the mag. "Trying too hard to be sexy is the worst thing you can do. Sexiness should be effortless."
Pals recently explained to Us Weekly that Aguilera has been working with fitness pro Tee Sorge and has been practicing yoga to slim down. "It's more of a mind-body thing for her," a source revealed to Us. "She believes in exercise that she enjoys, doing strength work as opposed to intense cardio."
This article originally appeared on Usmagazine.com: Christina Aguilera Rocks Even Skinnier Body on Tonight Show: Pictures