Los Angeles, May 10 (IANS): Singer Jennifer Lopez and Enrique Iglesias have prepared a new song to surprise their fans at an upcoming gig.

"We plan on doing some special things for the fans. We're actually working on this really good song, a new song right now," aceshowbiz.com quoted Lopez as saying.

"You have to train. Talking about going on six months of (touring), it's daunting, it's like whoa. It's exciting but it's still scary. Also, I've never done it before, so this will be my first time I've been on a world (tour)," she added.

The singer, who is busy preparing for musical festival, said: "There's a lot of dance rehearsal. We're revamping all the numbers so they feel fresh and new. We're doing all new arrangements for the songs - but not going too far away from the originals, because people go to see what they love so you don't want to change it too much."

For the choreography, Lopez is getting help from her dancer boyfriend Casper Smart.

"He's supervising choreographer and we're just working together to make the best show that we can make," she said.

The tour will be opened by Wisin and Yandel, who already have a duet song called "Follow the leader" with JLo.

Together with Enrique, they will kick off the music tour July 14 in Montreal and than travel to cities in North America till August.