Conversation so far:
What did musician Ray Price do in the 1960s ?
During the 1960s, Ray experimented increasingly with the so-called Nashville sound
Which songs employed the Nashville Sound did musician Ray Price sing ?
Examples include his 1967 rendition of Danny Boy, and For the Good Times in 1970
Did Danny Boy and For the Good Times by musician Ray Price do well in the charts ?
For the Good Times in 1970 which was Price's first country music chart No. 1 hit since The Same Old Me in 1959
Did musician Ray Price win any awards in the period from 1960 to 2000s ?
In 2008 he won Best Country Collaboration with Vocals for Lost Highway
Did musician Ray Price collaborate with any artist in the period 1960-2000s?
Lost Highway was a collaboratoin with Willie Nelson
What did Ray Price work together on with Cherokee Cowboys and Willie Nelson ?
he performed with the Cherokee Cowboys and Willie Nelson (again with Huckabee playing bass guitar). they performed duets of Faded Love and Crazy.
Did musician Ray Price do any tours in the period 1960-2000s?
Last of the Breed was released on March 20, 2007. He toured the U.S. from March 9 until March 25 starting in Arizona and finishing in Illinois.
Which cities did musician Ray Price tour in the U.S. March 9-25, 2007?
Did anything interesting happen on the U.S. tour March 9-25, 2007 for musician Ray Price?
After the tour, Haggard remarked, I told Willie when it was over, 'That old man gave us a goddamn singing lesson.' He really did. He just sang so good.“

Question: Who was the man who gave a singing lesson ?
Self-contained rewrite: Who was the man who gave a singing lessons to Haggard and Willie?