understand songs on Instagram: "Follow (us) @understandsongs for daily songs, “Baby,” released in 2010 as the lead single from Justin Bieber’s debut album My World 2.0, became the breakthrough anthem that launched him into global stardom. Built on a bright, upbeat pop-R&B production, the song mixes bouncing drums, catchy synths, and a memorable sing-along chorus. The track features rapper Ludacris, whose verse adds a playful, nostalgic twist to the teen-romance theme. Lyrically, “Baby” captures