Co-headlining tours are concert events where two or more artists share the stage and perform as equals. This arrangement allows each artist to showcase their music while attracting their respective fan bases. It often results in a diverse lineup, providing audiences with a unique experience as they enjoy performances from multiple popular acts. These tours can be beneficial for the artists involved, as they can share production costs and reach larger audiences. Examples of co-headlining tours include collaborations between well-known musicians like Taylor Swift and Ed Sheeran, or Katy Perry and Lorde, creating excitement among fans and enhancing ticket sales.