Complex sentence: In 2016, the band marks a tour with Def Leppard and Tesla and also performed with Pitbull the song "Messin' Around" live on the ABC TV show Greatest Hits, that version of the song was also released as a single on iTunes.
Split into simpler sentences: In 2016, the band marks a tour with Def Leppard and Tesla. The band performed with Pitbull the song Messin' Around live on the ABC TV show Greatest Hits in 2016, that version of the song was also released as a single on iTunes.