The 'Heart Skips a Beat' singer tweeted the Welsh star directly to reveal his crush after spotting her on TV.
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He wrote: "Watching wimbledon... @KathJenkins pops up on screen... How pretty is she!!!! #putherbackontheteleplease."
Jenkins later simply replied: "You sweetie x"
The single Murs has often spoken of his celebrity crushes in the past, including once asking for Cheryl Cole's number.
He also recently stated that he hoped to crash Rochelle Wiseman's hen party in order to chat with Mollie King.
Olly Murs will release his debut US album In Case You Didn't Know on September 25.
Katherine Jenkins recently said that she would never move to Los Angeles for good after she came second in Dancing with the Stars.
Watch the video for Olly Murs's 'Oh My Goodness' below:
