Complex sentence: Paynter began touring, serving as a supporting act for Vanessa Amorosi, Shannon Noll, Newton Faulkner, Seal and The Veronicas on their Revenge Is Sweeter tour.
Split into simpler sentences: Paynter began touring, serving as a supporting act for Vanessa Amorosi, Shannon Noll, Newton Faulkner and Seal. He also supported The Veronicas on their Revenge Is Sweeter tour.