British “X Factor” contestant Cher Lloyd links with her U.S. “X Factor” counterpart Astro aka The Astronomical Kid in the video for “Want U Back,” the third single from her U.K. debut Sticks + Stones. A pouty Cher flips through photos as she recalls fond memories with her ex-boyfriend, who has moved on to another girl. But now that she’s out of the picture, she wants back in. Watch her jealousy get the best of her.