Jennifer Lopez can be ''militant'' about work.

The 'Dance Again' singer's friend and collaborator Pitbull says he has learnt a lot from working with the 43-year-old beauty because she is one of the hardest working people in the music industry.

The 32-year-old rapper told Ryan Seacrest on his KIIS-FM radio show on Tuesday (21.05.13): ''(I) learn a lot from her every time I get the chance, I just watch how she moves. How diligent she is, militant at times, but very professional and a hard worker.''

The Latina bombshell - who began dating choreographer Casper Smart in October 2011 shortly after her third marriage fell apart - is hopeful for a fairytale ending and recently revealed she will ''probably'' walk down the aisle with her beau in the future.

Probed as to whether she wanted to marry again, she giggled: ''I don't know ... probably, maybe! I like [being married], I like the idea of it, I always have. As a girl you never really give up on that fairytale completely.''

Jennifer - who has five-year-old twins Max and Emme with her third husband Marc Anthony - is so smitten with Casper, 25, that she doesn't care about their age gap and chooses to ignore the stigma about older women dating younger men.

She said: ''There's more of a stigma to it, you know? But I'm not really one to follow rules or stay within a box.''