It reached the top 10 in several countries, including Australia, Austria, Canada, Germany, New Zealand, Sweden, and the United Kingdom.

[9] The key of the song was originally a step lower, but the duo changed it in order to better accommodate Daya's range.

Robbie Daw of Idolator stated "[Don't Let Me Down] kicks off with a haunting guitar loop and 17-year-old Daya lamenting that she's 'crashing, hit a wall, right now I need a miracle.'

By the time the chorus sweeps in, the song shifts into full-on trap mode" and called it a "trappy collaboration".

[5] Popdust's Jason Scott claimed "[Don't Let Me Down] is an enormously engaging strip of gritty dance-club euphoria.

[14] In the video, Andrew Taggart and Alex Pall (the Chainsmokers) get into a yellow convertible, lowrider at sunrise and begin to drive down a wooded mountain road.

Intercut with shots of them driving is Daya, dressed in black leather pants and jacket, singing in a misty field full of bushes.

Taggart and Pall stop the car when Daya, surrounded by dancers dressed similarly to her, stand in the middle of the road, blocking it.

Towards the end of the song, the rocking lifts Taggart and Pall out of the car and they are suspended in the air as the girls disperse.

Lyca Gairanod, winner of The Voice Kids Philippines first season, covered the song in a local morning show Umagang Kay Ganda (Lit.