Billie Eilish took to her Instagram page like other celebrities to post pictures marking the end of the year.
She danced sexily in the video to Justin Bieber's song "Right Here" featuring Canadian rapper, Drake.
The star accompanied the video with a slew of pictures from moments in the year.
One picture was of the singer standing in front of happy 21st Birthday golden balloons decorating her wall.
Fans gushed over her dance and could not seem to get over how sexy she looked, including Beiber's wife, Hailey.
The "Bad Guy" singer bragged about landing her boyfriend, lead singer of Neighborhood band, Jesse Rutherford.
She noted that she could not believe that she landed someone so sexy and revealed her love language.
The couple debuted their relationship officially on the red carpet wearing high-end designer pajamas.