If you’ve ever wondered whether romantic music will enhance your chances of getting a date with the girl you fancy, wonder no more – science has the answer (and it turns out to be yes).
‘Love is in the air’: Effects of songs with romantic lyrics on compliance with a courtship request
Psychology of Music, Vol. 38, No. 3, 303-307 (2010)
Nicolas Guéguen, Céline Jacob, Lubomir Lamy
Previous research has shown that exposure to various media is correlated to variations in human behaviour. Exposure to aggressive song lyrics increases aggressive action whereas exposure to songs with prosocial lyrics is associated with prosocial behaviour. An experiment was carried out where 18—20-year-old single female participants were exposed to romantic lyrics or to neutral ones while waiting for the experiment to start. Five minutes later, the participant interacted with a young male confederate in a marketing survey. During a break, the male confederate asked the participant for her phone number. It was found that women previously exposed to romantic lyrics complied with the request more readily than women exposed to the neutral ones. The theoretical implication of our results for the General Learning Model is discussed.
There’s a great write-up of the study on Nou Stuff if you want more details.
Link to study abstract and DOI entry (via @danlevitin).
Link to write-up on Nou Stuff.
Mind Hacks 
I think this is just another example of priming, and we could probably find that for any X stimulus the participant will be more likely to Y.
In this case, for a romantic stimulus the participant will be more likely to take romantic action.
I wonder if putting on some Marvin Gaye towards the end of the date will have a, erm, similar effect.