In 2004, Pejoski designed the costumes for Misia's dome tour, The Tour of Misia 2004 Mars & Roses.
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He is mainly known for designing Björk's iconic swan dress, which the singer wore many times: on the Vespertine album cover, for the Vespertine Tour, for the 2000 Cannes Festival and for the 2001 Academy Awards.
Marjan Pejoski's design resembled a giant swan wrapped around the wearer, and achieved great notoriety, being talked about, referenced and parodied in a number of sources for years after the event.