"Wannabe" is a song that was recorded by South Korean girl group Itzy and released on their second extended play (EP) titled It'z Me. JYP Entertainment released the song as the EP's lead single on March 9, 2020. It was written and produced by Galactika (Korean: 별들의 전쟁), who also produced the band's debut track "Dalla Dalla". The song combines house and hip-hop/pop production, and bubblegum-pop melodies.

"Wannabe" received generally favorable reviews from music critics. It was a commercial success, charting in eight countries and peaking at number six on the Gaon Digital Chart and at number two on the Billboard K-pop Hot 100, their third top-ten hit in their native country. It topped the charts in Malaysia and Singapore, becoming their first number-one song on both charts. The song has since been certified gold by the Recording Industry Association of America (RIAA) and the Recording Industry Association of Japan (RIAJ).

Naive Creative Production directed the song's accompanying music video, which was uploaded onto JYP's YouTube channel simultaneously with the single's release. Within 24 hours, the music video accumulated over 11 million views and has, as of 2023, accumulated more than 500 million views, making it their most-viewed music video on the platform. Following the release of It'z Me, Itzy promoted the song with live performances on several South Korean music television programs and amassed eight music show trophies.