I said "I like a lot of parties". Google seems to think that is "Me gusta un montón de fiestas."
To clarify, gustar is a special verb that requires the indirect object pronoun (me, te, etc.). Basically, this sentence really means 'The parties are very pleasing to me'. Since the subject is 'parties', you use gustan. Confusing, but important. (Source: http://www.studyspanish.com/lessons/gustar.htm)