"Somethin' Bad" is a song recorded as a duet by American country music artists Miranda Lambert and Carrie Underwood.

The song was written by Chris DeStefano and Brett James along with Priscilla Renea while they were at a writing retreat in France for ASCAP.

"[3] Lambert said she had wanted to do a duet with Carrie Underwood, and that "It's been too long since two girls in our genre have come together like that, especially on a song that's kind of in your face.

[7] The song made its debut on the 2014 Billboard Music Awards on May 18, 2014 with a performance by Lambert and Underwood.

"[10] Jason Scott of AXS called it "a fun, beat-driven summer anthem" and rated it four stars out of five.

[11] Taste of Country said that the song's "ready-for-anything lyrics and the way that Lambert and Underwood belt them out with such power, make ‘Somethin’ Bad’ a catchy girl-power anthem.

1 on the Billboard Hot Country Songs in its sixth week, becoming Underwood's 13th number one on the chart and Lambert's fifth.

It features Lambert as Belle Boyd and Underwood as Priscilla Parker, a pair of jewel thieves.

The video is presented as a trailer for a film where the pair play poker, ride Indian motorcycles and engage in a jewel heist in which they flee in a luxury Bell Helicopter.