The members are Yann Peifer and DJ Manian, who originally founded the band in 2007.
Their biggest hit was the song "Turn This Club Around", which charted in the top 5 in Germany and Austria and at number one in Switzerland.
Their debut song with him was "Shine On", where he played Jesus Christ (from Nazareth) in its music video.
Initially they released their songs on Zooland until they signed a contract with German label Kontor Records in 2011.
On music videos and live performances, Manian and Yanou stayed in the background.
Since the entry of British singer, rapper and DJ of Jamaican origin Tony T. (Neal Antone Dyer) in 2007, he was the face and voice of R.I.O.. American born-German pop, R&B and hip-hop artist U-Jean (Alex Hutson) was used in some recordings.
became known as a duo consisting of Manian and Yanou with U-Jean performing at their concerts and in videos.
Yanou and Manian experimented in their studio, producing a cover of "Samba de Janeiro Bellini".
which was released as a single, but only in the form of remixes by artists such as Spencer & Hill, Stereo Palma or as MYPD, Manian and Yanou themselves.
Although in Germany, it met limited success, in Spain, their version advanced to the top 10.
The two Cologne producers discovered the 36-year-old British singer and rapper Tony T., who eventually joined the project as vocalist and frontman.
Shortly thereafter, they began as a trio to work on new songs and preparing their debut album.
Its popularity reached southern Europe and the entire Middle East, charted in most European countries, including peaking at number 25 in Germany, 21 in Austria, 17 in Switzerland and 22 in Spain.
In October the trio mixed the song "Brighter Day" and in November "Serenade" as a download.
The song was released on 28 October as a promotional single in the Netherlands, where it charted for two weeks.
The video was uploaded to the Kontor Records YouTube Channel on 4 January and was viewed more than 25 million times.
Together with Dan Winter, and the pseudonym Black Toys Manian mixed the track in the style of the original song.
In the middle of 2011, Manian and Yanou met American singer and rapper U-Jean, who had aroused a stir with Carlprit.
In the Media Control Charts "Turn This Club Around" made number three, while in Switzerland it reached the top.
The song debuted on number 48 in Germany, 51 in Switzerland and peaked at 33 on the Austrian chart.
Many critics compared the single with the song "Levels" of the Swedish DJ Avicii.
Manian and Yanou then remixed "Rock This Club" by King & White in collaboration with Cimo.
On 2 August, they released an eight-minute medley, consisting of "Turn This Club Around", "Like I Love You", "Animal", "Ready or Not", "Summer Jam", "Party Shaker" and "Shine On".
At the end of August, they previewed "Komodo (Hard Nights)" and published it on 27 September.
This song covered "Komodo" by Mauro Picotto, using similar background sounds.
The track reached the download Charts of all online music services in hours.
In October, a further remix appeared as a reinterpretation of "Maria (I Like It Loud)" by Scooter from 2003 and was featured 20 Years of Hardcore.
The first version was from 1997 by Marc Acardipane, Marshall Masters and The Ultimate MC as "I Like It Loud".
These show a calmer style and did not chart but its release did accompany a music video.
On 16 March 2017, their label Kontor Records confirmed that the duo would start a comeback.