We didn't see this coming. Especially after that transexual rumour.
The couple, who previously dated between October 2011 and June 2014, have apparently decided to give their relationship another whirl.
Entertainment Tonight reports that they were spotted getting cosy while celebrating New Year together in Las Vegas, where Jennifer, 45, was for her The Best Is Yet To Come New Year's Eve concert at Caesars Palace.
Since their split, the pair have remained on friendly terms and have been pictured together on a number of occasions. It now appears they are back dating and hoping to make a success of their relationship second time around.
Meanwhile, Jennifer admitted recently she felt like she was "going to die" when her marriage to Marc Anthony broke up.
Jennifer - who was married to Marc for 10 years until their divorce last year - said she experienced more pain than she ever had before when the former couple went through a divorce.
Speaking on HBO documentary Jennifer Lopez: Dance Again, she said: "I remember being on the set and being in my dressing room and not feeling like I could get up in the morning and there's just no pain like that. There's no pain or failure like going through a divorce. That hope, that dream, that fairytale, with that first time that dream gets blown to pieces, you feel like you're going to die. You feel like you failed. You feel like no matter how hard I tried, I couldn't make it work."
