Christina Aguilera Supports Fellow "Dirrty Girl" Miley Cyrus, Attends Los Angeles Concert

Too dirrty to clean her act up! Christina Aguilera saw some obvious similarities between new wild child Miley Cyrus and her own "Dirrty" days at Saturday night's Staples Center concert on her Bangerz Tour.

"Cheers from one dirrty girl to the next @MileyCyrus…wear em' loud & proud, girl- yes!!" Aguilera, 33, tweeted with a photo of Cyrus, 21, wearing red chaps with her name written down on leg.

The "Beautiful" singer was the first pop diva to make the fashion statement back in 2002 when her song "Dirrty" came out, wearing similar yellow leather chaps with "Xtina" written down the leg. Both ladies started their careers working for Disney, with Aguilera performing as a Mouseketeer and Cyrus as Hannah Montana.

Aguilera seems to have come a long way since her days of rebellion. In the past week, she announced the news of her engagement to boyfriend Matt Rutler, and Us Weekly exclusively broke the news of her second pregnancy on Feb. 20. ?
The mother of 6-year-old Max wasn't the only concert goer at last night's Los Angeles show. Cyrus infamously locked lips with Katy Perry, and the photo of the moment instantly went viral. American Horror Story star Sarah Paulson was also in the audience, and Cyrus was overjoyed to find out that fellow Disney alum Hilary Duff was also in attendance.

aw they're both 21 in the pic