One year later, Weezer invited Ozma to tour with them again on 2002's "Hyper Extended Midget Tour", which also featured Saves the Day. Early in 2001, the band self-released their second album "The Doubble Donkey Disc" (later reissued on Kung Fu Records). With this release, Ozma experimented with the traditional Russian balalaika and the flute to create a sound they called "Russian coldfusion." The disc was split into two imaginary concept EPs: the first five songs (including the Russian folk song "Korobeiniki", more famously the "Tetris" theme) revolved around Russian themes, while the second half created a more danceable atmosphere. Later in 2001, partly as a result of the exposure gained from touring with Weezer, Ozma signed with Kung Fu Records, which led to a mainstage appearance on the 2002 Warped Tour. Over the next two years, Kung Fu put out remastered and enhanced versions of "Rock and Roll Part Three" and "The Doubble Donkey Disc", before Ozma's third album, "Spending Time On The Borderline", was released in 2003. This record saw Ozma mature their sound and expand their musical outlook, moving away—at times significantly—from the keyboard-driven, often video game–themed rock of the earlier albums. During the 2001–4 period, Ozma toured the US numerous times, with bands such as Nada Surf, Superdrag, Piebald, The Format, and Rilo Kiley. On July 23, 2004, Ozma announced that they had disbanded, citing deteriorating relationships between band members. Daniel Brummel moved to New York City to pursue a more folk-heavy style and released his debut solo album "Speak Easy" independently on September 27, 2005. Also during this interim period, Ryen Slegr and Jose Galvez formed "Yes Dear" with ex-members of Arlo and Teen Heroes. On January 9, 2006, Ozma announced that the band had reunited—without Edwards—to play new shows, new songs, and put out new records. During July and August 2006 the band joined The Rentals for the "Return Tour," with Slegr (now an official member of The Rentals) performing in both bands. During the tour, Ozma rotated many new songs through their setlist. In September, the band announced that they would be touring the nation again in October with the band Hellogoodbye.