Lemsalu rose to fame as the winner of the fourth season of Eesti otsib superstaari, the Estonian version of Idol series.

After winning, Liis went on tour with other participants of Eesti otsib superstaari and released a single "Kõnnime seda teed" together with the runner-up of the show, Artjom Savitski.

She came back two years later for Eesti Laul 2015 with Egert Milder and the song "Hold On", but once again failed to qualify.

After 2015, Lemsalu gained a lot of popularity after her biggest hit "Sinu Ees" ("In Front Of You" in English) was released in May 2016.

Since "+1", she released "Tähed Me Jalge All", "Kehakeel", "Halb või hea" and "Doomino" with the singer Stefan.