Grammys 2015: Jessie J & Tom Jones Perform 'You've Lost That Lovin Feelin''

Jessie J and Tom Jones perform during The 57th Annual GrammyY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, California.  

Kevin Winter/WireImage

Jessie J, the English singer quickly rising to prominence stateside, and inimitable barrel-chested crooner Tom Jones took on The Righteous Brothers' classic '60s pop song "You've Lost That Lovin' Feelin'" as the third performance of the 57th Grammy Awards.

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Tom Jones, still possesing that classic bellow, was typically assured, while J kept pace with the veteran easily before both kicked it off to the Best Pop Solo Performance award.