During the early months of 2006 Jonathan was rehearsing as drummer with a band called Warfrog. This was the second band that Jonathan was a member of, his first being Thanx Mr. back in 2005. Unfortunately there are not many pictures of Warfrog, as they only performed once with Jonathan as drummer which was on Saturday, July 9 2006, at BB King's Blues Club, Universal City Walk, Universal City, CA. Jonathan left the band at the end of July 2006 due to work and water polo commitments. He continues to practise drums (his personal set being Oyster blue), however his schedule allows him little time to dedicate to music.