She became famous during the 1990s when she and her sister Aleksandra Kovač were a big attraction in Serbia and surrounding countries – R&B band K2.

In 1989, under their father's guidance, using the name Next of kin the girls recorded an English language album Way to the top in Spain.

The album was also released in their home country in 1990, but failed to make much of a splash without proper media support.

In 1991, the duo sang back vocals for Bebi Dol who represented Yugoslavia at the 1991 Eurovision Song Contest.

Towards the end of the year they came back to Belgrade, before departing for Norway in the summer of 1992 where, under the name You dirty sisters they recorded promo material for the composer Sway.

The year 1993 brought another trip to England where the sisters performed in various London clubs such as Mean Fiddler, The Orange and Tea Room des Artistes.

After hearing them perform in Mean Fiddler in 1993, Errol Brown (the former singer of Hot Chocolate) booked Aleksandra and Kristina as an opening act and as backing vocals on his tour.

1 hit Dabadamdam became Debedamdam, Sestre became Hermanas, Ajmo u zivot became Vamos de fiesta etc.

In 1997, they released a compilation with Serbian hip hop artists, which also included two new K2 songs: "Srebro i zlato", and "Da li znaš".

In later days, turbo folk music got more attention in Serbia, so the girls split up and started doing solo projects.

She composed melodies for many advertisements, and also formed the boy band Peti element in 2001 which was quite popular in those days.

The album features the Croatian band Cubismo, and Vinnie Colaiuta (drums, played with Sting, Eros Ramazzoti, Anastacia, Pussycat Dolls), Dominic Miller (guitar, Sting’s "right hand") and Paul Turner (bass for Jamiroquai and Annie Lennox) also did some instrument playing on the album.

Kristina chose "Milica i ja" as the third single and made an unofficial statement on her official forum that her fans would be able to be in the video too.