After two years, Jessica Jung is finally back with a new single!

Titled 'Can't Sleep,' the track is part of the OST for Jessica and her sister, f(x)'s Krystal's variety show, Jessica & Krystal US Road Trip. The release of the song was accompanied by a music video that featured clips of the siblings on their trip to the United States. The sisters can be seen shopping, boarding a plane, walking along the streets and more.

'Can't Sleep' is the former Girls' Generation member's latest release since her 2019 track titled 'Call Me Before You Sleep'.

Since then, the singer has been active on her YouTube channel, where she uploads everything from music covers to Q&As for her over 700,000 subscribers.