Complex sentence: Fans in the audience screamed and cheered their support for the group throughout the interview, and the group themselves appeared relaxed and happy, dismissing what they said were false alllegations, the band then went on to perform the single Hot Love with an impressive dance routine.
Split into simpler sentences: Fans in the audience screamed and cheered support throughout the interview, and the group themselves appeared relaxed and happy, dismissing the allegations. The band then went on to perform the single "Hot Love" with an impressive dance routine.