Calvin Harris, Taylor Swift and Joe Jonas
Calvin Harris, Taylor Swift and Joe JonasInstagram

Taylor Swift has all the reasons to be on cloud nine. Not only has her 'Bad Blood' video broken all the records, but her personal life too seems to be rocking.

While it has come out that all is okay between the 'Shake it Off' singer and her new boyfriend DJ Calvin Harris, her ex-boyfriend Joe Jonas too had all-things-good to say about the lady in his latest interview.

Recently, various reports claiming Swift and Harris having a troubled relationship have been doing the rounds on the web. It was reported that the Scottish-born DJ is already cheating on the 'Bad Blood' singer.

According to OK! Magazine, Harris was spotted with a mystery brunette in Las Vegas just a day before the Billboard Music Awards night. And, this was followed by another report claiming that Swift confronted Harris about cheating allegations.

But now, both sources close to the 'Blank Space' singer and the 'Feel so Close' hit maker have claimed that the reports are false. One of the singer's close friends has denied the cheating allegations, reports Inquisitr [via Fashion & Style Magazine].

In fact, both Calvin and Taylor look very happy together in their Billboard after-party pictures. And the "mystery brunette", with whom the DJ was spotted, is also seen posing with the couple in those pictures.

"The friend claims that the reports are 'nonsense' and that Taylor and Calvin are as happy as they appeared at the Billboard Music Awards," the website reported.

We are pretty convinced with this report because even recently, when Swift borrowed clothes worth $13,000 from a sex shop in LA for her latest video 'Bad Blood', she ended up keeping items worth $5,000 for herself.

Well, we don't want to speculate why she purchased them.

Meanwhile, Joe Jonas revealed in his latest interview that he is still good friends with Taylor. Swift and Jonas had a short and not so sweet relationship for three months in 2008, ending in one of Taylor's heart-wrenching breakup songs, "Forever and Always".

Now, nearly seven years later former "Jonas Brother" star revealed that everything is cool between them.

"She's great. We're friends. I think, in this industry, you meet a lot of people and you stay in touch. Obviously, it's tough to be friends with people that are always constantly travelling, but yeah, we're cool," he told Access Hollywood.

In fact, he also said that he carries no offence for being dissed in her song. "That's part of being a musician, I guess. You write songs about each other," Joe said.

While Taylor Swift and Calvin Harris relationship heats up, it's good to know that the singer is in good books with at least one of her exes.