Showbiz
Rex Features
US tabloid reports had claimed that the singer-songwriter was secretly romancing Perry, but that the couple had chosen to keep their relationship under wraps.
Speaking to People, a representative for Groban denied the rumours, saying: "Josh and Katy are very close friends and hang out but they are not a couple."
Groban dated actress January Jones from 2003 until 2006, while Perry split from Gym Class Heroes frontman Travis McCoy in January.
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