After filming for three months in Miami, Jennifer Aniston has big plans for the wrap party of Marley & Me, including a special performance by her new man, John Mayer! In Touch can reveal that the celebration will take place at Nikki Beach in Coconut Grove on May 10, where the sexy rocker will perform at least three songs. According to an insider, the party was originally supposed to take place on May 9. “Everything was changed at the last minute so John could do this for her. He’s crazy about Jen.” The pair have fast-tracked their romance and the insider says, “It’s hot and heavy but in that very cool way.” The insider on the set adds, "John isn’t going to hide his adoration and he’s telling everyone what a cool chick Jen is.” Looks like this relationship is anything but a wrap!