In honor of Valentine's Day, we've ranked the biggest 'Love' songs to ever hit the Hot 100

20

"Vision of Love" - Mariah Carey

Hot 100 Peak: No. 1 for four weeks (1990)

Right after she was signed to Columbia, Carey wrote her debut single with Ben Margulies. She described the composition as being not so much a love song as a celebration of her life at the time.

19

"It Must Have Been Love" - Roxette

Hot 100 Peak: No. 1 for two weeks (1990)

Originally recorded as a Christmas song in Sweden in 1987, this track was revised by Per Gessle when he was asked to update it for the "Pretty Woman" soundtrack. "I heard the director really loved the song," says Gessle. "I also heard he re-edited the movie to get it in there."

18

"Love Takes Time" - Mariah Carey

Hot 100 Peak: No. 1 for three weeks (1990)

Her first album was being mastered when Carey played a demo of this song for label president Don Ienner aboard a plane. Carey was told the song was a "career-maker" and despite her protests, the presses were stopped and the song was added to her debut release.

17

"Woman in Love" - Barbra Streisand

Hot 100 Peak: No. 1 for three weeks (1980)

Barry and Robin Gibb wrote the song for Streisand but the former told Billboard he gives the artist most of the credit. "At least 80 per cent of the success of the record belongs to her."

16

"Love Is Blue" - Paul Mauriat

Hot 100 Peak: No. 1 for five weeks (1968)

Five years after he co-wrote Peggy March's No. 1 hit "I Will Follow Him," Mauriat was back on top of the Hot 100 with an instrumental cover of "L'Amor Est Bleu," Luxembourg's entry in the 1967 Eurovision Song Contest. Vicki Leandros performed the song, which placed fourth in the annual songfest.

15

"To Know Him Is to Love Him" - The Teddy Bears

Hot 100 Peak: No. 1 for three weeks (1958)

Phil Spector was inspired to write the song by a photograph of his father's tombstone at Beth David Cemetery in New York. The inscription read: "To Know Him Was to Love Him."

14

"Crazy Little Thing Called Love" - Queen

Hot 100: No. 1 for four weeks (1980)

Freddie Mercury wrote the song while languishing in his bath at the Munich Hilton. He leapt from the tub and ran to his guitar and piano to lay down the melody. His label was reluctant to release the song in the U.S. but radio stations played the imported U.K. single anyway, forcing an American release.

13

"Because You Loved Me" - Celine Dion

Hot 100 Peak: No. 1 for six weeks (1996)

After viewing the film "Up Close and Personal," Diane Warren met with director Jon Avnet to talk about her vision of the song she was to compose for his movie. The next morning in her office, she recalls, "The chorus lyrically and musically wrote itself."

12

"My Love" - Paul McCartney and Wings

Hot 100 Peak: No. 1 for four weeks (1973)

McCartney wrote "My Love" about one of the members of his post-Beatles band, Wings. The inspiration for the sentimental ballad was Scarsdale, N.Y.-born Linda Louise Eastman, a professional photographer before she married McCartney on March 12, 1969.

11

"Bleeding Love" - Leona Lewis

Hot 100 Peak: No. 1 for four weeks (2008)

Ryan Tedder and Jesse McCartney wrote the song, inspired by the latter's long-distance romance with his girlfriend. McCartney wanted the song for himself but his label was unenthusiastic so it went to the winner of the third season of "The X Factor" in the U.K.