Reni Jusis (born March 29, 1974, in Konin, raised in Mielno) is a Polish pop singer, songwriter and producer.

In 1997 Yaro and Reni published the album Yazzda, with smash hit Rowery dwa ("Two Bikes").

After that success Yaro began work on Reni's solo debut album, which was released next year.

Another album Elektrenika ("Electrenic" – mix of words "electronic" and "Reni") was released after a two-year break and was the breakthrough turn in Jusis' sound for electronic music based on club rhythms, 2-step and house, inspired by the music from the 80's.

Elektrenika was promoted by "Electrenic Night Tour" which helped her to gain popularity among the fans of club music.

Jusis' fourth album Trans Misja ("Trance Mission" – a play on the words "trance", "mission" and "transmission"), released after another two-year break in 2003, continued the music direction from the previous album, but offered different styles – including songs in the electro-pop style.

Trans Misja achieved more success than previous albums thanks to three huge hits Kiedyś Cię znajdę ("Someday I Find You"), Ostatni raz (nim zniknę) ("The Last Time Before I Disappear"), It's Not Enough and still more popular club tournee "Top Secret Tour".

In the beginning of 2006, EMI released the 5-disc box set Dyskografia ("Discography") containing Reni Jusis' first four albums and a DVD featuring all her solo music videos.

The lead single, Kilka prostych prawd ("A Few Simple Truths"), was released in late 2005, nine months before the album.

Still, Magnes turned out to be a radical dance album; additionally, all songs were merged into each other, like one continuous club set.

Apart from seven new tracks, the album also featured new English language versions of three older hit songs (Leniviec, Nigdy Ciebie nie zapomnę (as How Can I Ever Forget You) and Kto pokocha (as Single Bite Lover) and remixes of album's first two singles.

This time the artist planned to perform in old theatres instead of clubs, because of the album's title, which is the name of the old cinema Jusis used to go to when she was young.

Jusis explained that the sudden turn in her style is caused by the aim of going back to her first musical fascinations.

In July 2010 Jusis recorded the song Twoją wiarę mam ("I Have Your Faith") for the Polish version of the soundtrack to Walt Disney's Tinker Bell and the Great Fairy Rescue.

In November 2011 Jusis released her first book, written with Magda Targosz, Poradnik dla zielonych rodziców ("A Guide For Green Parents"), promoting the raising of children in accordance with ecology.