One of my favorite bands of all time is Creed. I could listen to them all day.
 Creed was an American rock band
Do you know when the band was formed?
Yes, it was formed in 1993 in Tallahassee, Florida
Who were the members? I know the lead singer was Scott Stapp.
You are right, it  hads  lead vocalist as  Scott Stapp, guitarist and vocalist Mark Tremonti, bassist Brian Marshall, and drummer Scott Phillips
I wonder what those guys are all doing now. Did Creed officially break up or are they just on a long break?
. Creed disbanded in 2004; Stapp pursued a solo career while Tremonti, Marshall, and Phillips went on to found the band Alter Bridge with Myles Kennedy in 2004.
In 2009, after months of speculation, Creed reunited for a fourth album, "Full Circle", and actively toured until 2012. Since then, Creed has been on hiatus while the instrumental members have remained active with Alter Bridge; Stapp has continued his solo career and joined the band Art of Anarchy in 2016. Tremonti also formed his own band
Creed (band)
Creed is an American rock band that formed in 1993 in Tallahassee, Florida. For the majority of its existence, the band consisted of lead vocalist Scott Stapp, guitarist and vocalist Mark Tremonti, bassist Brian Marshall, and drummer Scott Phillips. Creed released two studio albums, "My Own Prison" in 1997 and "Human Clay" in 1999, before Marshall left the band in 2000. The band's third album, "Weathered", was released in 2001, with Tremonti handling bass guitar