Britney Spears, <em>Best Time Ever</em> Britney Spears, Best Time Ever

They may have worked rough situations and served in the military, but these bodyguards are no match for Britney Spears - especially not with Neil Patrick Harris and Joe Jonas in her ear telling her what to say.

Spears offered to take part in a bit on Tuesday's Best Time Ever, where Harris and Jonas were on board to help her prank hopeful bodyguard applicants in the "Voices in Your Head" segment. While watching from hidden cameras, the two told the pop star what to say and do, including juggling water bottles, leading a mysterious scavenger hunt and introducing herself as, "It's Britney, bitch."

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Check out the clip to see how the unsuspecting candidates handled the bizarre situation.

Best Time Ever with Neil Patrick Harris airs Tuesdays at 10/9c on NBC.