From an article title "10 Questions for Jennifer Lopez'', after being asked about how much she was influenced by her husband Marc Anthony music, Jennifer Lopez has been asked about her other big music influences. Here's her reply:

"I love a good lyricist--always have. The thing that inspired me most was the different performers, like Tina Turner, James Brown, Michael Jackson, Madonna, even Janet Jackson. I always loved the idea of mixing music and dance."

Source: Time