One (Harry Nilsson song)

"One" is a song written and originally performed by Harry Nilsson, released in 1968. It gained significant popularity after being covered by the band Three Dog Night in 1969, becoming a Top 5 hit for them in the United States.

Nilsson's version of "One" is characterized by its melancholic piano intro and Nilsson's distinctive vocal performance. The lyrics express loneliness and the feeling of being alone even when surrounded by people, emphasizing the isolating nature of human connection. The repetition of the word "one" throughout the song reinforces this theme.

Three Dog Night's rendition features a harder rock arrangement with prominent organ and a more upbeat tempo compared to Nilsson's original. Their version maintains the core lyrical message but presents it in a more commercially accessible and energetic style. It became one of their signature songs and a staple of classic rock radio.

The song's enduring appeal stems from its relatable theme of loneliness and its simple, yet effective, musical structure. It has been covered by numerous other artists over the years, demonstrating its lasting impact and versatility. The song's success also helped to establish Nilsson as a respected songwriter and recording artist.