<P> In the season 8 episode "Band or DJ?," Ted runs into Cindy on the subway and tells her that the band Barney and Robin hired to play at their wedding cancelled at the last minute . The end result of the encounter is that Cindy's (now ex -) roommate's band plays at Barney and Robin's wedding . </P> <P> The Mother is first shown meeting Louis in "How Your Mother Met Me" as she is left to carry the band equipment while the now - lead band member Darren talks to his fans . Later at MacLaren's Pub, she tells him she's not yet ready to date . Louis asks her to give him a call if she changes her mind and they begin dating not long after . </P> <P> The Mother meets all of Ted's best friends (Barney, Lily, Marshall and Robin) before she meets him . The Mother is responsible for convincing Barney to pursue Robin, as revealed through a flashback in "Platonish". In "The Locket", Tracy meets Lily on a train journey . </P> <P> In "Bass Player Wanted", the Mother picks up a hitchhiking Marshall, carrying his son Marvin, on her way to Farhampton Inn . On their way, it is revealed that the Mother is a bass player in the band, that is scheduled to play at the wedding reception . But the band's leader, Darren, forced her to quit . The Mother ultimately decides to confront Darren and retake the band . She ends up alone at the bar, and while practicing a speech to give Darren, Darren walks up to her furious the groom's best man punched him for "no reason ." Amused by this, the Mother laughs, and Darren quits the band in anger . </P>

In what season does ted meet the mother