1. "If You Had My Love" (1999): This was Jennifer Lopez's debut single and became a global hit, reaching number one in several countries, including the United States.
2. "Waiting for Tonight" (1999): Another successful single from her debut album, "Waiting for Tonight" peaked at number eight on the Billboard Hot 100 chart in the United States.
3. "Let's Get Loud" (1999): This song became a signature hit for Jennifer Lopez and is often performed at her concerts. It reached number three on the Billboard Hot Latin Tracks chart.
4. "Love Don't Cost a Thing" (2001): From her second album, "J.Lo," this song became one of Jennifer Lopez's most successful singles, reaching number one in the United States and several other countries.
5. "I'm Real" (2001): Featuring Ja Rule, "I'm Real" was another chart-topping hit for Jennifer Lopez, reaching number one in the United States and becoming one of her most recognizable songs.
6. "Ain't It Funny" (2002): This single was also successful, peaking at number one on the Billboard Hot 100 chart in the United States.
7. "Jenny from the Block" (2002): Featuring Jadakiss and Styles P, "Jenny from the Block" became a popular hit and is known for its music video, which features cameos from several celebrities.
8. "Get Right" (2005): From her album "Rebirth," "Get Right" reached number one in the United States and several other countries, becoming one of Jennifer Lopez's biggest hits.
These are just a few of the many hit songs Jennifer Lopez has released throughout her music career. She has had numerous successful singles and albums, solidifying her status as a prominent figure in the music industry.