Ai no Tane (愛の種 ; Seeds of Love) is the demo single by Morning Musume. Producer Tsunku challenged the five girls who lost the Sharan Q audition to sell 50,000 copies of this song they recorded together to get a record deal. It was released on November 3, 1997. The single hit 50,000 sold by November 30. This song also appears on Morning Coffee, the Morning Musume debut single that was released a couple months later, on their first album First Time, and on their album Best! Morning Musume 1. The instrumental version of this song appears on the Morning Musume Early Single Box.