Eight Miles High---Golden Earing
Who Do You Love---Quicksilver Messenger Service
Hocus Pocus---Focus (the only hard rock band I am aware of with a decent yodeler)
Don't Try to Lay No Boogie-Woogie on the King of Rock and Roll---Long John Baldry
...and as someone else mentioned...a few cuts from The Allman Brothers Live at Fillmore East...
Jan Akkerman is one of the greatest guitarists that few have ever heard of.