Britney Spears' 'Piece of Me' Show for Her Las Vegas Residency Wows Die-Hard Fans [WATCH]

Pop singer Britney Spears arrives at Planet Hollywood Resort and Casino in Las Vegas, Nevada December 3, 2013. Spears is making preparations for the debut of her two-year Las Vegas residency, "Britney: Piece of Me," that is scheduled to begin at Planet Hollywood on December 27. REUTERS/Steve Marcus/Las Vegas Sun

Britney Spears has just kicked off her two-year Las Vegas residency by performing at her "Piece of Me" show at the Axis Theatre of the Planet Hollywood Resort and Casino in Nevada last Friday, Dec. 27, 2013 at 9:00 pm. The show was reportedly amazing, and Spears wowed her die-hard fans that came out to watch their pop idol perform again.

CREDIT: YouTube/Planet Hollywood Las Vegas

Spears performed in the said show that lasted for about 90 minutes. She sang and danced to more than 20 of her songs, including her popular hits "Baby One More Time, "Toxic," "Everything," "Freakshow," "Womaniser," "Scream and Shout," and "Till the World Ends." Check out the video below to see Spears in action at the Las Vegas show.

CREDIT: YouTube/Planet Hollywood Las Vegas

Britney tweeted about her first "Piece of Me" show in Las Vegas. Check it out below.

Wow… perfect audience for the 1st #PieceOfMe show! That was AMAZING! I <3 you Vegas!!! pic.twitter.com/7w0mGIH3BJ
— Britney Spears (@britneyspears) December 28, 2013

Britney got the two-year deal to perform "Piece of Me" shows in Las Vegas for 50 times a year. Her contract will last until 2015. She has a tough act to follow because her shows come after Celine Dion and Elton John's successful Las Vegas stints. Other stars who performed in Vegas are Shania Twain and Rod Stewart. According to The Age, Spears wowed about 4,600 fans who attended the stunning performance that was filled with Spears' trademark dance moves, amazing backflips, out-of-this-world costumes and special effects, not to mention her talented back-up dancers who added to the energy of the show. It didn't even seem to matter that Spears lip-synced her songs in the show. Spears appeared on stage as an angel singing "Everything" and a dominatrix singing "Freakshow." There was even a giant tree where she sang her hit song "Toxic" as she sat on top of it. Check out her fans' reactions on Twitter: Spears' fan Antony absolutely loved the show while Gary Griffin is amazed at how Britney Spears' body looks after 14 years.

Love the opening sequence so much + the dancing is on fire! #WorkBxxch #PieceOfMe pic.twitter.com/Hz3Eazl1C0 — ★Antony★ (@Britney_Army_UK) December 31, 2013

OBSESSED with @britneyspears' body! 14 years later and she's rocking Vegas in THIS outfit. #PieceOfMe @Queen #Slay pic.twitter.com/OVFR5naFkd
— Gary Griffin (@_GaryGriffin_) December 27, 2013

Meanwhile, some of Britney's famous fans trooped to Vegas to watch her show as well, including Katy Perry, Miley Cyrus, Mario Lopez, Adam Lambert and Selena Gomez. Spears graciously thanked them for attending the opening night and the succeeding shows.

.@KatyPerry Was SOOOO good to see you again girl! Glad we could make our Vegas date happen :) — Britney Spears (@britneyspears) December 28, 2013

.@adamlambert Thanks for coming to #PieceOfMe last night!!! Means a lot to me :)
— Britney Spears (@britneyspears) December 29, 2013

.@MarioLopezExtra hope you had fun ;) — Britney Spears (@britneyspears) December 29, 2013

.@MileyCyrus Love you so much! Thank you for coming to #PieceOfMe! I adore you :)
— Britney Spears (@britneyspears) December 28, 2013

Britney Spears' "Piece of Me" show for her Las Vegas residency is off to a great start. Will it continue to be successful within its two-year duration? Let's wait and see. While in contract for the Las Vegas shows, Spears cannot perform elsewhere.

Check out the video of Britney Spears' Welcome Event at Planet Hollywood:

CREDIT: YouTube/Planet Hollywood Las Vegas

Click HERE for tickets to Britney Spears' "Piece of Me" Shows in Las Vegas, Nevada.