Grady Smith
September 20, 2011 AT 07:39 PM EDT

Judging by Monday night’s ratings, there’s a good chance that you were checking out Ashton Kutcher’s debut on Two And A Half Men rather than watching NBC’s delightful a cappella competition The Sing-Off last night. Bad decision.

If you didn’t see the show, you missed fierce (both in the literal and Top Model sense) girl group Delilah delivering an utterly searing rendition of Bruno Mars’ “Grenade.”

As the ladies slowly sauntered around the stage, pausing for the occasional hip gyration, lead singer Amy tore through the number with soulful done-me-wrong scorn. The sparse arrangement built to the climactic “Watch me burn down” line of the chorus, which was clearly the best use of dramatic posing all night.

Girl groups often struggle to achieve a full sound, but with a two talented bass singers, that wasn’t an issue for Delilah at all. Watch their performance below:

Impressive, right? Just for fun, check out last night’s polar opposite performance, a toe-tapping cover of “Jump Jive an’ Wail” from BYU’s Vocal Point. I love that two vastly different groups like this can exist on the same program:

Did you catch the episode? (If so, check out the recap here) Were you a fan of Delilah, or did you prefer the clean-cut presence of Vocal Point more?

Read more:

The Sing-Off premiere recap: Music To My Ears

‘The Sing-Off’: Meet the new Digital Correspondent Sam Tsui

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