The group was founded in 1994 by Tomer Glatt and Alon Levin, two 16-year-old high school students from Givatayim who attended to the same class.
[1] Under the record company "Phonokol" the group released their first hit song during 1994 in collaboration with the singer Didi.
The song achieved relative success in the carts in Israel and Spain.
[1][2] During 1995 and 1996 the group released four more singles that were very successful in the Israeli charts as well – the song "Lover" (performed in collaboration with Dikla Shachar), "Will You (Still Love Me), "Let's Go", and "One Last Thing".
[1] During the second half of the 1990s Insideout's career faded mainly due to Levin's recruitment to the army.