"Heart Attack" is one of Trey Songz's biggest hits, and is widely regarded as one of his best songs. It is a soulful, sultry R&B track that showcases Songz's smooth vocals and heartfelt lyrics. The song is about a man who falls deeply in love with a woman and experiences a "heart attack" because he can't believe how much he loves her. The music video for "Heart Attack" is also visually stunning, and features Songz and his love interest in various romantic settings.