Read the following paragraph and determine if the hypothesis is true:

John Michael Stipe (born January 4, 1960) is an American singer, songwriter, musician, film producer, music video director, visual artist, and philanthropist. He is best known as the lead singer of the alternative rock band R.E.M. from their formation in 1980 until their dissolution in 2011.

Hypothesis: The only band Stipe has been in was REM
It's impossible to say