Baby by Justin Bieber is a pop song from Canada that explores the themes of young love and heartbreak. In this track, Bieber sings about the emotional rollercoaster of teenage romance. He reminisces about a past relationship that ended painfully, despite the strong feelings he had for the girl. The song's catchy chorus and relatable lyrics speak to the universal experience of first love and the inevitable heartache that can come with it. Notable moments in the song include Bieber's earnest declarations of affection and his promise to always be there for his love interest, highlighting the sincerity and intensity of youthful emotions.