I agree with CAO Cherrybomb, but it isn't subtle....
I'd also recommend Iwan Ries's Three Star Cherry Cordial. Probably the best Cherry I've had - great flavour, still know you're smoking tobacco, nice room note, not syrupy and isn't loading with PG....
http://www.iwanries.com/three-star-cordial-cherry-P8117C1594.cfm