"Opium" (Russian: Опиум) is the third released single by Russian girl group Serebro.
This was the fourth song to be made public from Serebro's album Opiumroz after "What's Your Problem?"
was performed at the RMA on 4 October 2007.
On 13 March 2008 Serebro announced on their official website that they would be releasing their third official single "Opium".
The song premiered on the Russian morning radio show BrigadaU on Europa Plus.