Ryan Seacrest joins Justin Bieber during Wango Tango (instagram, facebook)

The concert event, which kicked off at 10 a.m. with the Wango Village, featured a wide variety of top 40 chart-toppers. The show was also streamed online for the first time, allowing fans around the world to enjoy the festivities. 

The sets may have been short (many of the performances were 20 minutes or less), but the night flew by with little delay in between performances.

Here’s a look at who impressed and who underwhelmed at the Tango. 

BEST

1. Adam Levine and Maroon 5

One week after “The Voice” finale, coach and lead singer Adam Levine led his band with a fast-paced, dynamic set. Beginning with “Harder To Breathe,” both the male and female fans in attendance proved the band may have deserved a longer set and performance time later on into the night. Wiz Khalifa, who performed a set later that evening, joined the band during “Payphone.” Finally, the group closed the show with “Moves Like Jagger.” Levine left sweating bullets but the crowd felt energized and pumped for the night to come after the group’s epic performance. 

2. Pitbull

It seems that Pitbull is a guaranteed guest at Wango Tango. In fact, he’s appeared at four of the past five shows. Don’t think for a minute the fans are sick of him. Closing the show, Pitbull sped through his songs including “International Love,” “I Know You Want Me” and his latest from the “Men In Black 3” soundtrack, “Back In Time.” He performed his contributions to songs such as Jennifer Lopez’s “On The Floor” and Usher’s “DJ Got Us Falling In Love Again.” The always appreciate performer concluded the night by thanking the crowd for giving him success.  He sang “Give Me Everything,” the song that put him on Fuego.

3. Celebrities Everywhere

KIISFM knows much of the audience is young and obsessed with celebrities. It was no surprise then that practically everywhere you turned, someone famous appeared. Kathy Griffin joined Ellen K in introducing Ryan Seacrest to the stage. “Real Housewives Of Beverly Hills” star Taylor Armstrong posed for pictures with fans during Carly Rae Jepsen’s performance. Deena and Ronnie from “Jersey Shore’s” arrival during The Wanted’s set received more screams and applause than the band onstage. “Keeping Up With The Kardashians” stars Kylie and Kendall Jenner, members from Big Time Rush, Sophia Grace and Rosie and “Dancing With The Stars” dancers also made guest appearances.

NOT SO GOOD

1. Nicki Minaj 

Nicki, Nicki, Nicki. For someone who always has a few surprises and tricks up her sleeve, the rapper was pretty tame Saturday night. Wearing a white dress and matching sneakers that couldn’t offend anyone, Minaj came out doing what she does… which is evidently mouthing a few words and dancing. When the camera got close up, Minaj rarely appeared to be singing or rapping live. Maybe she was more focused on her dance moves, which weren’t that bad. During one point in her performance, one of the background voices stopped working causing Minaj to stand nervous and quiet.  To be fair, when “Starships” began, all was forgiven as it was one of the best moments of the night.

2. Justin Bieber’s much-hyped appearance

When Justin Bieber debuted his latest single “Boyfriend,” on Ryan Seacrest’s morning show, he promised he would return to Wango Tango to introduce Jepsen, a Canadian now reaching success in the states with “Call Me Maybe.” Believers were hoping for a surprise performance from the teen heartthrob but unfortunately got nothing. Bieber ran through the floor seats aisle, said a few sentences and you never saw him again. Throughout the night, fans in attendance sent messages begging to have Bieber return. Their texts and shout-outs were displayed on the giant screens during other performances. It wasn’t enough and the “Guest Host” failed to return.

Learn more about Wango Tango here.

Reach writer Mike Vulpo here