When Nicole Scherzinger, now single, stepped out for "X Factor" auditions in London, there were no signs of heartbreak on the radiant singer's face. Nicole's sassy pink get-up almost said, "Lewis Hamilton who?"

Nicole wears an Emma Cook outfit.

On July 15, Nicole made a movie star entrance at London's Wembley Arena where she joined "X Factor" hopefuls as well as fellow judges Gary Barlow, Sharon Osbourne, and Louis Walsh. The "Boomerang" singer wore an Emma Cook outfit. She wore a crisp, pink shirt, unbuttoned just enough to show a glimpse of her bra and cleavage. Nicole paired her shirt with a graphic floral print skirt. A black belt showed off the "Baby Love" singer's tiny waist, while her short skirt and black Kurt Geiger pumps lengthened her legs. The 35-year-old former Pussycat Doll added delicate Katie Rowland Morrigan necklaces. Lush curls, pink lips, and oversized sunglasses added to Nicole's sexy attire.

Earlier in July, Nicole Scherzinger and Lewis Hamilton broke up. Nicole and her race car driver beau were together for five years. In those years, the two split up twice and reconciled. Lewis even hinted at a possible engagement. In June, he spoke with The Sun, saying, "...hopefully in the near future. Maybe before we get to six years." Shortly after, news of the couple's breakup spread.

Nicole sizzles in a red Hugo Boss pantsuit.

Nicole isn't one to let personal matters get in the way of a sub-par red carpet appearance. Only days after her split from Lewis, Nicole was spotted at the "X Factor" auditions in Cardiff, Wales wearing what can only be described as a post breakup revenge look. The "Poison" singer showed off her toned figure in a red Hugo Boss pantsuit with nothing but a belly-baring tank top and layers of gold jewellry underneath.

Click on the photos for more of Nicole Scherzinger's style.