LONDON, ENGLAND - SEPTEMBER 27: (L-R) Cristopher Wolstenholme, Matt Bellemy and Dominic Howard of Muse pose backstage at The
Matt Kent

Muse has responded to a lawsuit alleging that the group stole the sci-fi rock opera concept for their 2009 song "Exogenesis" from songwriter Charles Bollfrass, calling it "nonsense" and the allegations "groundless."

A spokesperson for the group said in a statement, "The claim is complete nonsense, and is categorically denied. It appears to be based on a 'screenplay' which the band never received or saw, produced by someone the band has never heard of.  It speaks volumes that the album in question was released a full three years ago, and yet this is the first that has been heard of these groundless allegations.

"Warner Music will aggressively defend this lawsuit, and the band is exploring what remedies may be available to them in the US in relation to these untrue and baseless allegations."

According to Courthouse News Service, Bollfrass claims he wrote a "cinematic science-fiction rock opera" called "Exogenesis" that he pitched to Muse and two unnamed bands in 2005. According to the lawsuit, Muse allegedly told Bollfrass they weren't interested the next year. Upon its release, the song was listed as being written by Muse frontman Matthew Bellamy.

Check back to Fuse.tv for more news on the suit as it develops.