The members of Team Cee Lo sang "What's Love Got to Do With It" by Tina Turner, after being mentored by Ne-Yo and Babyface.
The judges noted that it may not have been the best song for Erin's vocal style, and Christina and Adam thought The Shields Brothers had the better performance.
Ultimately Cee Lo sided with Erin because he felt he could do more with her voice than with The Shields Brothers'.
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