Burning Up by the Jonas Brothers is a high-energy pop-rock track that focuses on the intense feelings of infatuation and attraction. The song expresses the overwhelming sensation of being so captivated by someone that you feel like you're 'burning up.' Key themes include passion, desire, and the physical and emotional impact of falling head over heels for someone. Particularly poignant moments can be found in the lyrics that describe the heightened physical responses and the sense of urgency in wanting to be close to the object of their affection.