the good hair crew, often known in fandom as the GHC and written on a t-shirt as #goodhaircrew, is a friend group consisting of the three main protagonists, andi mack (played by peyton elizabeth lee), cyrus goodman (played by joshua rush), and buffy driscoll (played by sofia wylie) from disney channel series andi mack. they have been best friends since 2nd grade. cyrus dubbed their friend group this in season 1 episode 5 "it's not about you".
cyrus: and so ends another adventure of the good hair crew.
andi: we're not the good hair crew.
cyrus: we are now. the t-shirts have been ordered.