There are more than one artist with this name.
1) Riva was a ...
band from Croatia, then Yugoslavia, in the late 1980s. The group debuted on Zagrebfest 1988. Their song Rock Me won the Eurovision Song Contest 1989 in Switzerland, with a score of 137 points.
2) 1S A TALENTED YOUNG PRODUCER FROM MILAN CREATES EXPERIMENTAL AND ONIRIC P☯ST-TRAP.
3) Alias of Ismael Rivas.
4) Alias of Zki & Dobri (Gaston Steenkist and Rene ter Horst),
DJs from the Netherlands who have produced multiple dance hits under various group names since the early 1990s, and who had a hit named Who Do You Love Now? with singer Dannii Minogue.
5) Guss van Vlaanderen and Horst Pulmann. Read more on Last.fm.