LISTEN One Direction New Song 2013 'Best Song Ever:' Teaser Released for Single from 'This Is Us,' Fans Asked to Complete Song Lyrics Before July 22 Release Date [VIDEOS]

Boy band One Direction are one week away from releasing their new single 2013 "Best Song Ever." In order to hype fans up before the song's debut, the "What Makes You Beautiful" group has been holding contests every Monday for the last few weeks.

This week, 1D has released a new 21-second long snippet of "Best Song Ever" and asked their legions of dedicated fans to finish the lyrics. Though the contest is exciting, the most interesting part of this announcement is a new taste of the highly anticipated track.

Known mostly for love songs, "Best Song Ever" is a feel good party anthem. In the teaser, what seems to be the chorus for the single is revealed. "And we danced all night, / To the best song ever, / We knew every line, / Now I can't remember, / How it goes, but I know, / That I won't forget her, / 'Cause we danced all night to the best song ever," the group sings.

"I think it went 'Oh oh oh,'/ I think it went 'Yeah yeah yeah," the song snippet concludes. One Direction then tweeted that fans have 24 hours to try and guess the rest of the lyrics, using the hashtag #GuessBestSongEver.

Listen to the snippet of "Best Song Ever" below.

1D fans can expect much more promotion, hype and teasing from the band over the next seven days. Their official Twitter has deemed this week the #BestWeekEver.

"Best Song Ever" will be released Monday, July 22. It's reportedly the first single off the boy band's new album. Additionally, the song will be featured in the upcoming concert documentary One Direction: This Is Us. The song was initially revealed in the film's trailer. Check that out here.