Alicia Keys, H.E.R., Lil Jon, Ludacris, Will.i.am and Jermaine Dupri all took the stage to assist Usher, 45, during the career-spanning set, which started with the song "Caught Up."
Alicia Keys opened up her performance while she rocked an all-red Dolce & Gabbana look and sang "If I Ain't Got You" by herself. Usher then joined the star, 43, for their song "My Boo." As Keys sang the chorus, Usher showed off his signature smooth moves.
After Usher began to sing "You Got It Bad" to the stadium, H.E.R. arrived playing an electric guitar. The Color Purple star continued to jam on the guitar as the song transitioned into the singer's hit "Bad Girl." Following her guitar solo, the shirtless headliner joined H.E.R., 26, and hyped her up.
Will.i.am, 48, reunited with Usher during the highly coveted performance spot and began rapping during "OMG." Back in 2011, Usher also made a surprise appearance during the Black Eyed Peas' halftime show performance — where he sang the same hit song "OMG."
Jermaine Dupri, 51, was another surprise guest during the performance. The artist hyped up the crowd before Usher launched into a mashup of "Confessions" and "Burn."
Lil Jon began his appearance by standing in the crowd singing "Turn Down For What." Quickly, the song transitioned into "Yeah!" and the headliner danced beside his group of backup dancers as the song continued. After Lil Jon, 53, rapped during the first bit of the song, Ludacris, 46, arrived and finished the hit song and the entire show.
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