Miley Cyrus in Miami on June 13, 2012 Credit:

After briefly visiting her fiance Liam Hesmworth in Louisiana, Miley Cyrus' "Party in the USA" continued on in Miami June 13.

Wearing a white $213 Giejo bikini, the super slim 19-year-old took off her engagement ring to swim in the pool at the Delano with an unidentified male companion. And though Hemsworth, 22, was hundreds of miles away shooting Empire State with Emma Roberts, 21, and Nikki Reed, 24, he wasn't far from Cyrus' mind.

"I miss my mommy and my fiance," the former Hannah Montana star tweeted. She also dispelled rumors about her relationship with Hemsworth, writing: "I love my fiance and he loves me. All the rest is bullsh-t. We get to live a life of happiness no one can take that away from us!"

Hemsworth recently proposed to Cyrus, his love of three years, with a one-of-a-kind vintage engagement ring by Neil Lane. At three-and-a-half carats, the cushion-cut ring features carved diamond motifs in an art nouveau pattern. The ring's center stone is an antique that dates back to the 19th century.

Cyrus and her Australian fiance first met on the set of The Last Song in 2009. They briefly split the following summer but eventually rekindled the flame. This will be the first marriage for both stars.