Miley Cyrus & Lance Bass Attend Britney Spears Vegas Concerts

Britney Spears checked in with Twitter followers (@britneyspears) after performing a pair of concerts in Las Vegas at Mandalay Bay Events Center, which included celebrity concertgoers Miley Cyrus and Lance Bass, with the former *NSYNC star joining Britney on stage. Spears writes:

@MileyCyrus Thanks for coming to my show last night! Hope you had fun! - Britney

My good friend Lance surprised me on stage last night for Breathe On Me. It was soo funny! Good to see you Lance! -Brit

Miley then responded on her Twitter:

You are very welcome @britneyspears =] I love you so much! Have fun in Aussie! Wish I was going wiff yall xo