The phrase "Who will stop the rain?" is famously known as the title and a key lyric from the song "Who'll Stop the Rain" by Creedence Clearwater Revival, released in 1970. The song reflects themes of longing for peace and an end to difficult times, often interpreted as a metaphor for the Vietnam War era's turmoil. If you're asking literally about stopping the rain, weather is controlled by natural atmospheric conditions, and humans currently do not have the ability to stop rain on demand. However, meteorologists can predict rain, and there are experimental techniques like cloud seeding to influence precipitation, but these methods are limited and cannot stop rain altogether. Would you like to know more about the song, its meaning, or the science behind rain?