Katy Perry has denied rumours that she dated British actor Robert Pattinson.
The Last Friday Night singer said that she sent a text message to R-Patz's ex Kristen Stewart insisting that the pair were not romantically involved.
Katy, 28, was linked to Robert, 27, after he split from his Twilight co-star Kristen, 23, following revelations that she had an affair with her Snow White And The Huntsman director Rupert Sanders.
But Katy told Elle UK that she was just trying to support Robert after the break-up, saying: "I sent her (Stewart) a text message saying: 'I know you've seen all this stuff but you know I would never disrespect you. I'm not that person. I'm just trying to be a friend to him but it is unfortunate that I do have a set of t***'."
The US singer, who was previously married to comedian Russell Brand, said that she was attracted to "challenging" men.
But she added: "I'm not interested in taming anyone - I'm pretty wild myself."
She said of her split from singer-songwriter John Mayer in February before the couple reconciled: "He pulled away. That was a big hello for me. I realised I could lose the person I loved and I had to deal with some things, issues I think a lot of women have. You can be strong in one aspect of your life but submissive in another."
Speaking about her friendship with Rihanna, she told the magazine's September issue: "I love her and every time I see her, I'm reminded of the light that she has."
She added: "There's a lot of dark in this business. I know a lot of people out there with the most detrimental entourages - they are the root of their demise. It's really unfortunate but you can't save these people. My days of celebrity saving are over."