Kalenna Harper is an American singer and songwriter from Philadelphia, Pennsylvania. She is best known as a member of the musical group Diddy – Dirty Money, which was formed by herself, Dawn Richard, and Sean Combs in 2009. The group signed with the latter's Bad Boy Records to release their only album Last Train to Paris (2010), which was met with critical and commercial success. They also released two mixtapes until their disbandment in 2012.

Last Train to Paris is a collaborative studio album by American rapper and record producer Diddy and American R&B duo Dirty Money, billed collectively as "Diddy – Dirty Money". It was released on December 14, 2010, by Bad Boy Records and Interscope Records. It is the only album by Dirty Money before their 2012 disbandment, although the group reunited once more to co-perform on a song from Diddy's fifth album, The Love Album: Off the Grid in 2023. Story-wise, the album follows Diddy's alter-ego as he travels from London to Paris to regain his lost love; subject matter and lyrics are predominantly based around dramatized descriptions of romance, heartache, vulnerability, regret, and emotional conflict. Last Train to Paris is predominantly contemporary R&B, but incorporates elements of Eurodance, Italo disco and tech house.