'The Big Bang Theory' releases 'Bernadette's Song' on iTunes for charity

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If you were fan of Howard's ( Simon Helberg) song for Bernadette ( Melissa Rauch) during the Thursday (Oct. 24) episode of "The Big Bang Theory" (and how could you not be?), you're in luck: CBS has made the song available for purchase.

The day after fans swooned as Howard sang his original composition "If I Didn't Have You (Bernadette's Song") outside his wife's hospital room during her quarantine after a lab accident, the very sweet and very funny song was released on iTunes in recognition of the show's support of MusiCares, an organization established by the Recording Academy to provide a safety net of critical assistance for music people in times of need.

The cast recording, which features Helberg singing lead with co-stars Johnny Galecki, Jim Parsons, Kaley Cuoco, Kunal Nayyar and Mayim Bialik providing backup, was written by former "Big Bang" guest star Kate Micucci (who recurred in Season 6 as Raj's girlfriend Lucy) and her music partner Riki Lindhome, who perform as the comedy duo Garfunkel and Oates.

Check out the in-show performance above and be sure to head to iTunes if you like what you hear.

"The Big Bang Theory" airs Thursdays at 8 p.m. ET on CBS.
Photo/Video credit: CBS