Andy Grammer is an American singer-songwriter known for his upbeat and catchy pop songs. He gained popularity with his self-titled debut album in 2011, featuring hits like 'Keep Your Head Up' and 'Fine By Me'. Grammer's music is characterized by positive and uplifting lyrics, often focusing on themes of love, perseverance, and self-improvement. He continues to release new music and has established himself as a prominent figure in the contemporary pop music scene.