What makes Calling All Angels by Train notable?

'Calling All Angels' reached number one on the Billboard Adult Contemporary chart and received significant airplay, marking Train’s continued evolution as a radio-friendly act. The song's themes of hope and longing resonated widely, contributing to its popularity during the early 2000s. Released on June 17, 2003, 'Calling All Angels' came during Train's commercial resurgence following their successful album 'Drops of Jupiter' in 2001. The band was solidifying its presence in the pop rock scene, transitioning from early success into mainstream recognition with this single.