 Carter, who opened for the band during the fifth leg of the tour in April 1988, collaborated with Double Trouble during an extended break in the fourth leg of the tour, and wrote the song "Crossfire" (the song was ultimately included on Vaughan and Double Trouble's next LP "In Step", released in 1989, and became their only number-one hit single).Commencing with the latter portion of the fourth leg, early performances of the song were included in the main set.Vaughan and Double Trouble often finished their set with "Life Without You" while Vaughan routinely paused in the middle of the song to warn the audience about the dangers of substance abuse.