Billie Eilish's 'Bad Guy' and 'when the party's over' back new Calvin Klein adverts - part of the brand's #MyCalvins campaign. 

Featuring in two new adverts, Billie Eilish has joined Shawn Mendes as part of the Calvin Klein's squad of influential young celebrities. 

In the first, 'Bad Guy' plays under a video that sees Billie, alongside Shawn Mendes, Kendall Jenner, A$AP Rocky and Indya Moore clad in Calvin Klein, telling their stories. In the second, Billie reveals the reasons behind her outfit choices in a bathroom confessional as 'when the party's over' plays in the background. 

Both tracks are taken from Billie's debut album 'WHEN WE ALL FALL ASLEEP, WHERE DO WE GO?'

Watch Billie's solo ad featuring 'when the party's over' below and watch the I SPEAK MY TRUTH featuring 'Bad Guy' here.