Alvin Johnson is the main character of the movie “Love Don’t Cost a Thing”.  He has his own group of friends who are also known as the geeks/nerds of the school.  Once Alvin comes in contact with one of the prettiest and popular girl in school, she needs a favor from him.  In order for him to fix her car she has to date him for a certain period of time.  The popular girl (Christina Milian) gives Alvin a makeover which makes him fit in and have all of the girls fall for him, including her in the long run.