Katy Perry Flaunts Sexy Beach Body in Strapless Tie-Dye Bikini (Photo : Flickr)

Katy Perry looks in perfect shape as she flaunts her curves in a well fitted, sexy bikini as she enjoys vacation in Miami

On vacation with pals in Miami, Katy Perry flaunted her curves in a strapless black-and-yellow two-piece. Perry accessorized her swimsuit with oversized black sunglasses and a long, silver pendant necklace from Jewels by Dunn.

Since splitting from ex-husband Russell Brand earlier this year, the "Part of Me" singer has been making the most of single life. In addition to casually dating Florence and the Machine rocker Robert Ackroyd, she's also been enjoying nights out in Los Angeles with John Mayer.

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On June 19, Perry and Mayer spent the evening together at Soho House in West Hollywood.  

"They were affectionate, holding hands and cuddling," said an onlooker.

Last Friday too, the recently single Perry flaunted her curvy, sexy beach body while relaxing in the sun with a refreshing beverage -- and a copy of Robert Pattinson's latest Blackbook magazine cover issue.

The "Part of Me" singer, who accessorized her bikini with a long necklace, shades and fedora, enjoyed her read in the shade with pals. Perry's divorce from British comedian Brand was finalized on July 16.

Last week in a interview on Howard Stern's Sirius/XM radio show, Brand said their long distance relationship became too difficult. "She's young, successful and dedicated," he explained of Perry's career. "[The reality is] you can't fully understand it until you do it. I was really into the idea of marriage and having children... It was a lovely relationship ... it mostly didn't work for practical reasons ... We did work it out, she's happy, I'm happy."