Chynna Phillips forgot her routine on Monday's "Dancing With the Stars," and was eliminated during last night's results show.
The Wilson Phillips singer is "disappointed," "sad", but says she has to "take responsibility. I messed up."
Phillips lost her place in the middle of her tango with professional partner Tony Dovolani and wasn't able to recover."
Judges gave the pair 21 points out of 30. Judges' scores are combined with viewer votes to determine which contestant is eliminated each week.
The results show also featured performances by Raphael Saadiq and Susan Boyle, and the return of two-time "Dancing" champ Julianne Hough. The professional dancer-turned-actress and "Footloose" co-star Kenny Wormald danced to "I Need a Hero" before Blake Shelton offered his take on the movie's title song.