Great American Bands
Tom Petty and the Heartbreakers
The Eagles
Chicago
Allman Brothers
Foreigner
Nirvana
Bruce Springsteen & the E Street Band (over-rated IMO)
REM
Red Hot Chilli Peppers
Green Day
The Cars
+ more


Great American Musicians labeled as Solo Artists
Jimi Hendrix
Stevie Ray Vaughan
BB King
Bo Diddley
Muddy Waters
Buddy Guy
John Mellencamp
Prince
Jerry Lee Lewis
Michael Jackson
+more

Before you write the Americans off, check inside the link how many of the bluesmen have Yankee roots:
The 20 Greatest Blues Albums Of All-Time