Bruno Mars scored one of the biggest songs of 2015 with "Uptown Funk," but The Sequence, a rap group from the late '70s, claim that Mars jacked their song "Funk You Up." According to TMZ, The Sequence's rep Kali Bower says that the hook for the two songs are the same and her clients are contemplating filing a lawsuit against Bruno and producer Mark Ronson, who won the Grammy for Record of the Year at this year's awards.

The Sequence, which was made up of Angie Stone, Cheryl the Pearl and Blondy, released "Funk You Up" in 1979 on Sugar Hill Records. The record is listed as the first hip-hop song to be released by an all-female rap group. "Funk You Up" followed up the Sugar Hill Gang's "Rapper's Delight," and the two songs have similar elements in their respective compositions. Dr. Dre sampled the song for his 1995 hit "Keep Their Heads Ringin'."

This isn't the first instance where Mars and Ronson have come under fire for "Uptown Funk." In May of 2015, '70s funk band The Gap Band were added as writers for the song after a claim was put forth by publisher Minder Music on behalf of the band. "Uptown Funk" uses melodies and samples from The Gap Band's "Oops Upside Your Head."

According to Billboard, after the file was claimed by Minder, YouTube stopped paying publishers and moved the proceeds to an escrow account. Once the settlement was reached, The Gap Band was allegedly given 17 percent of the money in the account. Songwriter shares would then be split differently going forward.

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