The two-day iHeartRadio Ultimate Pool Party in Miami over the weekend drew a superfriendly J.Lo to the Fontainebleau Miami Beach’s legendary pool, where she spoke to Confidenti@l about love and the possibility of getting married again.

“She was so sweet and nice to everyone and took pictures with everyone who asked after just finishing on stage,” one concertgoer tells us about Lopez. “She was so happy.”

Perhaps that’s because her beau, Maksim Chmerkovskiy, was also in Miami Beach to spend time with her before the show.

Lopez, who just released the album “A.K.A.,” told us she’s heard about rumors her infamous booty is shrinking after she recently lost weight. She later plugged her album with her back to the crowd, saying, “If you want more booty, you have to buy the new album.”

“I’m so proud of this album, and I couldn’t say that about all my albums,” she told us. “Not that I wasn’t proud of them, but I really feel proud about this one.”

J.Lo also dished on her 5-year-old twins, Max and Emme, saying they’re her biggest motivation to keep going in showbiz.

“I want to give them the best life. You want them to have everything, you want them to grow up and have everything better than you had it,” she said. “Learn more than you did and not make the mistakes you did. You just want everything to be perfect for them, so they definitely motivate me to be better — yes, in my job — but a better person.”

Lopez said there’s a possibility she’ll marry again, saying she still believes in it, even after three divorces.

“I believe in love more than ever, but I think I’ve gotten a little bit smarter about it,” she said. “I like to think I’ve grown up a little bit, and I think all that is reflected on the album. You hear that, you hear a stronger Jennifer maybe than you have in the past.”

By Lopez’s side was her mom, Guadalupe, who danced and sang along to her daughter’s songs as she performed.

Also there were Tiesto, Ariana Grande, Iggy Azalea, Lil Jon and Neon Trees, who performed for a packed crowd.

The third annual Ultimate Pool Party was presented by Visit Florida, and was hosted by Nick Cannon, who tells us he’s modeling his career after his “America’s Got Talent” co-star and judge, Howard Stern.

“He is a great dude,” Cannon told us. “He definitely is, and I’ve learned so much from him watching his moves. He is at such a place right now that he has conquered everything. He gives good advice. I’m trying to be the next Howard Stern. That’s my goal.”