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A pair of artist managers have filed a lawsuit seeking royalties from the hit Justin Bieber song "One Less Lonely Girl."

Vance Tate and Thomas Oliveria claim in a lawsuit filed last week that they represent songwriters Sean Hamilton and Hyuk Shin, who collectively go under the moniker, A-Rex.

In 2008, A-Rex created a song, "One Less Lonely Girl," which ended up on Bieber's first album the following year and is credited as a collaboration among R&B star Usher, Hamilton, Shin, and two others.

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Tate and Oliveria claim they are entitled to 10% of publishing royalties associated with A-Rex's share of the song.

The plaintiffs estimate that's worth at least $200,000 and are seeking damages for breach of contract, fraud, conversion, and copyright infringement. In addition to Hamilton and Shin, the suit also names EMI Music Publishing and LA Reid Music Publishing Company, an entity connected with Bieber's label boss Antonio "L.A." Reid.

Since the song was introduced by Bieber, with an accompanying music video, the title has become a slogan of sorts for his young female fans. The singer has sold scarves and red roses branded with "One Less Lonely Girl."

Explaining the song's concept, Bieber told MTV News, "I think it's really important these girls have something so they can be one less lonely girl."

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