Nick Jonas shows off his super cool birthday cake while celebrating his special day on Friday evening (September 19) at Hakkasan Restaruant and Nightclub in Las Vegas.
The guys were in town the same night as the 2014 iHeartRadio Music Festival, where Nick hit the stage to introduce his friend Ariana Grande‘s performance.
Nick‘s birthday cake was themed around the music video for his new single “Jealous,” which features his girlfriend Olivia Culpo. She was in Vegas with him that night to help celebrate!
Patrick Schwarzenegger celebrated his 21st birthday that night separately at the same place and he partied with pals while DJ Tiesto spun tunes at the club.
15+ pictures inside of the guys celebrating their birthdays in Vegas… More Here! »
One Direction kicks off the night at the 2014 iHeartRadio Music Festival by walking the red carpet before their performance at the MGM Grand Garden Arena on Saturday night (September 20) in Las Vegas.
The guys – Niall Horan, Harry Styles, Liam Payne, Zayn Malik, and Louis Tomlinson – are kicking off the second night of the festival.
5 Seconds of Summer, the hot new band that is opening up for 1D on this summer’s tour, performed at the festival’s village stage earlier in the day.
Ed Sheeran, who has worked with both of the bands, also was in attendance that night!
30+ pictures inside of all the heartthrobs at the festival… More Here! »
Ariana Grande keeps it flashy while performing onstage during the 2014 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Friday (September 19) in Las Vegas.
During her set, the 21-year-old singer sang her hit song “Problem,” “The Way,” “Break Free,” “Break Your Heart Right Back,” and “Be My Baby.” Watch her full performance below!
PHOTOS: Check out the latest pics of Ariana Grande
After her performance, Ariana changed into a beautiful white dress for the music festival’s after party.
In case you missed it, watch Ariana and Nicki Minaj perform their latest single “Bang Bang” earlier in the night.
Ariana Grande – ‘iHeartRadio Music Festival’ Performance
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Ariana Grande bumps butts with Nicki Minaj while performing together during the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday (September 19) in Las Vegas.
The 21-year-old singer made a surprise appearance on stage during Nicki‘s set to perform their hit song “Bang Bang,” sadly without Jessie J though.
PHOTOS: Check out the latest pics of Ariana Grande
Ariana just announced her tour dates earlier in the week and she had to add a second show to New York City’s Madison Square Garden because of the high demand!
Ariana Grande & Nicki Minaj – “Bang Bang”
15+ pictures inside of Ariana Grande and Nicki Minaj at the concert… More Here! »
Taylor Swift plays the keys to accompany her performance during the 2014 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Friday evening (September 19) in Las Vegas.
The 24-year-old singer kicked off the night with an energetic 25-minute set. She sang “We Are Never Ever Getting Back Together,” “22,” “I Knew You Were Trouble,” “Love Story,” and wrapped with her new single “Shake It Off.” Watch the complete set in the video below.
While we were hoping for some new songs tonight, there’s just about a month left until Taylor‘s new album 1989 gets released!
FYI: Taylor is wearing a Jessica Jones outfit.
Taylor Swift Performs at iHeartRadio Music Festival 2014
30+ pictures inside of Taylor Swift performing at the festival… More Here! »
Jennifer Lawrence makes her way around the backstage area of the 2014 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Friday evening (September 19) in Las Vegas.
The 24-year-old actress, wearing a chic crop top, was in attendance to support her new boyfriend Chris Martin, who is at the festival performing with his band Coldplay.
This is the second time this week that Jennifer is supporting her new man. She reportedly sang along to every word at Chris‘ concert at the Ace Hotel Theatre in Los Angeles this past Wednesday.
“She knew every word to every song and there was a glisten in her eye as she watched Chris perform,” a source told E! News. “She couldn’t take her eyes off him.”
FYI: Jennifer is wearing an Emilio Pucci top and pants.
10+ pictures inside of Jennifer Lawrence and Chris Martin backstage… More Here! »
Taylor Swift shows off her awesome new plaque while walking the red carpet at the 2014 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Friday evening (September 19) in Las Vegas.
The 24-year-old singer kicked off the show that night and her new album title 1989 was the big backdrop to the stage. Check back later for performance videos and photos!
On the red carpet, Taylor was presented with the big milestone plaque to commemorate her new single “Shake It Off” being the RIAA’s fastest certified platinum song in 2014, as well as being the first artist to debut at number one on the iHeartRadio chart.
FYI: Taylor is wearing a Calvin Klein Collection outfit and Christian Louboutin shoes.
10+ pictures inside of Taylor Swift on the red carpet… More Here! »
