The episode title parodies the line "I found out what the secret to life is: friends. Best friends." from the 1991 film 'Fried Green Tomatoes' starring Kathy Bates.
At 33:35 in you can see Tommy misspelled the word breasts in his journal. He wrote brests.
This episode's use of a trio of Motown-style singers is reminiscent of "Little Shop of Horrors" (1986).