Steely Dan [ tickets ] continues to add new shows to the tail end of the band's current North American "Think Fast" tour, which hit the road running last week in Florida.The veteran jazz-rock band--led by co-founders Walter Becker and Donald Fagen--is currently in the middle of a six-night engagement at New York City's Beacon Theatre, with the next show in the stretch scheduled for tonight (6/18).The newly added shows mostly come near the end of the outing, which is currently set to wind down in late August. Details are below. Tickets are now on sale for most of the tour's dates.The ongoing tour marks the third straight year that the band has launched a major tour after a career spent largely avoiding the business of touring altogether. Last year, the group toured North America, Europe, Japan, Australia and New Zealand with a 10-piece band that included drummer Keith Carlock, bassist Freddie Washington and guitarist Jon Herington.Steely Dan continues to tour behind 2003's "Everything Must Go." The group's previous album, 2000's "Two Against Nature," was the pair's first new studio release in 20 years and earned the band three Grammys in 2001, including Album of the Year.Both of the band's principals have remained busy separately on the recording front, with Becker's second solo album, "Circus Money," hitting stores earlier this month. Becker, who plays bass on the set, leads a five-piece band that also includes Keith Carlock (drums); Jon Herington (guitar); and Jim Beard and Ted Baker (keyboards) on the album's 12 tracks. The disc was produced by Larry Klein (Joni Mitchell, Shawn Colvin).Fagen's third solo album, "Morph the Cat," was released in 2006.