"The Voice UK" season 4 judge Rita Ora revealed why she turned down the offer to be part of "X Factor," as Calvin Harris' ex-girlfriend rocked a revealing dress during the BBC One talent show's launch.

According to the 24-year-old "Fifty Shades of Grey" cast member, she respects "The Voice UK" more than Simon Cowell's "X Factor" talent show.

"The respect levels for this show are really high," Calvin Harris' ex-girlfriend told in an interview with The Sun.

"It is well received and respected by other artists. That's why I joined, because I really respected the format and how it musically connected to the contestants," "The Voice UK" season 4 judge Rita Ora added.

The singer, who once served as a guest judge in one "X Factor" episode, turned down the offer of BBC's rival ITV show even when a cash heavy contract was at stake.

Ricky Hil's new flame said as she chose "The Voice UK" as it gives the "freedom" for the coaches to do whatever they want.

"I don't know how X Factor works, I was only there as a guest judge for a day. But I watched The Voice a lot, I respected how it came across on TV and I love the freedom we get as coaches to do what we want," she said.

Meanwhile, the "I Will Never Let You Down" singer turned heads during the launch of the "The Voice UK" season 4.

Calvin Harris' ex-girlfriend was dressed in a purple dress with a deep plunging neckline that exposed her cleavage, The Daily Mail reported.

The dress' halter top featured crystals that elevated her look at the event as she also gained attention when its thigh-high slit showed off her long toned legs. She wore a pair of strappy heels to complete her look.

Meanwhile, Rita Ora's long blond hair was slicked back.

Rita Ora joins other "The Voice UK" season 4 coaches Sir Tom Jones, Will.i.am, and Ricky Wilson. The BBC One reality show will air on Saturday, January 10, a report from Digital Spy said.