Jannike is a singer/musician from Finland. Her childhood is described using the words from Abba´s famous song, as saying; "Mother says I was a dancer before I could walk. She says I began to sing long before I could talk".

Music has always been a part of Jannike's life. Aside from always singing at home and performing, for the first time, as a 3- year-old, she went to the public music school for piano and violin lessons and was involved in many choirs and orchestras.

Jannike was later accepted to the famous Sibelius-Academy where she began studying music on a professional level to make music her career. During those years she was an active musician and singer in various bands, often as the soloist, but sometimes as a backing vocalist for famous artists such as Jari Sillanpää, Jukkapoika, Robin, Katri-Helena, Peter Jöback (SWE), Loreen (SWE), Jennifer Brown (SWE) etc. Jannike was also a popular music teacher and an active choir conductor.

In the year 2008 Jannike auditioned for the finnish version of "American Idol" and got through. She ended up finishing in 9th place in the whole competition and received a taste of fame for a short while. After "Idols" Jannike withdrew herself from the limelight and continued studying, teaching music and working on her own music projects.

After a break that lasted several years, Jannike finally recorded some music in 2012, this time in swedish. "Bara Stunden" (under her complete name Jannike Sandström) was released in two different versions and was often played on the swedish speaking radio in Finland. In 2013 she released a swedish Christmas-song with the artist Thomas Lundin and the Lucia-choir, conducted by Jannike.

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In February 2014 it was time for a new start and Jannike´s first single in english was released. Jannike also changed her artist name to just JANNIKE.

"I don´t believe in Fairy tales" was often played on the radio and the video was partly made in Greece. The single was written by Niklas Rosström and Paul Oxley and was even played on Spanish radio where Jannike had some gigs in March 2015.

In April 2014 Jannike was in L.A. shooting her third video (released in May 2015). She had the chance to meet songwriter Linda Thompson, who happens to be Elvis´s last girlfriend and has written many hits such as "I have nothing" by Whitney Houston. Linda liked Jannike´s voice and wanted to work with her. As a result, the second single "Hallowed Ground" (and video) was released January 16th 2015 on iTunes, Spotify and Youtube. Jannike first performed the song at the Christmas Concert "Joulu Mielelle" arranged by Lastenklinikoiden Kummit r.y.  The concert was broadcasted on MTV3 in december. The song did very well and spent 12 weeks as number 1 on the chart Vegatoppen (Radio Vega) before dropping to number 2. Suprisingly, the following week it went back to number one again and Jannike was called the most popular artist of the channel. It also reached number 5 on Radio Suomi, the largest radio station in Finland. The story and video was featured on several large websites such as Ilta-sanomat.

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Jannike´s third single, "Into the Sun", was released 15th of May 2015.

The same day it went straight to number one on the chart Vegatoppen while Hallowed Ground was number 2. The radiohost playfully announced 15th of May as "the Jannike Sandström Day". Several big radiostations such as Radio Vega, Radio Suomi (where it debuted as number 8) and Sisuradio in Sweden picked up the single. The video was also the first video to be featured on many international music sites and blogs and Jannike gained more attention in Europe.

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"Hallowed Ground" stayed on the Vegatoppen chart an amazing 35 weeks and Into the Sun was on the chart for 14 weeks after dropping out of the top 6.

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Jannikes 4th single ”Seven Emotions” was released 15th of January 2016. The musicvideo, made in Berlin and Helsinki, is black and white and more artistic than ever. The song features the man behind Robbie Willimas hitsongs - Guy Chambers and was topping the Vegatoppen-chart and was also being played on Radio Metro Helsinki and Radio Suomi. 

On the same day as the release of Seven Emotions Jannike also announced that she has signed with a Record company in Germany and will be released as a new artist in Germany, Austria and Switzerland. She had kept this a secret for a very long time and the news made some headlines.