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OTRC: Britney Spears begins Las Vegas residency, Miley Cyrus attends (Video)

Britney Spears appears on the cover art for her 2013 single 'Work B----.' (RCA Records / BritneySpears.com)

Britney Spears kicked off her highly-anticipated Las Vegas residency show, "Britney: Piece Of Me," at the Planet Hollywood Resort & Casino over the weekend, with stars such as Miley Cyrus, Katy Perry and Selena Gomez in attendance.

Spears, who announced her Las Vegas residency on "Good Morning America" in September 2013, took to the stage to perform a catalog of her greatest hits ranging from 1998 to present day. Songs such as "Work B----," "Baby One More Time," "Oops!...I Did It Again," "Toxic" and "Womanizer" are featured in the show, many of which are remixed from their original format.

Cyrus, as well as Perry, Gomez and "Extra" host Mario Lopez, were all in attendance for the show's opening night on Friday, Dec. 27. Cyrus sat in the front row at the show, where fans captured her singing along to many of Spears' biggest hits. An Instagram video captured by an audience member on opening night show's Cyrus singing along to the song "Till The World Ends." The video can be viewed below.

Spears thanked Cyrus for attending her first Vegas show on Twitter, saying, ".@MileyCyrus Love you so much! Thank you for coming to #PieceOfMe! I adore you : )."

Lopez, who worked with Spears while she was a judge on FOX's "The X Factor" in 2012, was pulled up on stage during the song "Freakshow," where Spears proceeded to make Lopez crawl on the floor while wearing S&M gear.

The "Extra" host shared a photo of him and Spears on his official Twitter page, saying, "Somehow ended up on stage w/ @BritneySpears in bondage & getting spanked by her... : ) #PieceOfMe #Vegas."

Spears' "Piece Of Me" show will run for 50 shows each in 2014 and 2015 at the AXIS theater inside the Planet Hollywood Resort & Casino in Las Vegas. Tickets can be purchased here

Check out video of Cyrus singing along to Spears' "Till The World Ends" below.

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