Bruce Springsteen opened his "The River 2016" tour at Pittsburgh's Consol Energy Center on Saturday. After playing 1980's The River in full, Springsteen launched into an array of favorites, including "Badlands" and "Thunder Road."

At one point, he stepped up to the mic and took some time for David Bowie, the rock legend who passed away on Monday, January 8.

"Not very many people know this but he supported our music way, way in the very, very beginning. 1973. He rang me up and I visited him in Philly while he was making the Young Americans record*. He covered my music, 'Hard to be a Saint in the City' ... I took the Greyhound bus to Philadelphia, that's how early it was," Springsteen said.

He then launched into "Rebel Rebel" from 1974's Diamond Dogs.

In addition to "Hard to be a Saint in the City," Bowie also recorded "Growing Up," which was released on a 1990 re-release of Pin Ups.

Then WMMR DJ Ed Sciaky, an early Springsteen supporter, made the meeting between the two happen. Springsteen didn't have a place to stay so he slept on Sciaky's couch. During the time Bowie was recording Young Americans (late '74, early '75), Springsteen was just coming off the one-two punch of Greetings from Asbury Park, NJ and The Wild, the Innocent, and the E Street Shuffle. Born to Run, Springsteen's break out, was released in August of 1975.

In the liner notes to One Step Up / Two Steps Back: The Songs Of Bruce Springsteen, a Springsteen tribute album, Bowie wrote, "Springsteen came down to hear what we were doing with his stuff. He was very shy. I remember sitting in the corridor with him, talking about his lifestyle, which was a very Dylanesque – you know, moving from town to town with a guitar on his back, all that kind of thing. Anyway, he didn't like what we were doing, I remember that. At least, he didn't express much enthusiasm. I guess he must have thought it was all kind of odd. I was in another universe at the time. I've got this extraordinarily strange photograph of us all – I look like I'm made out of wax."

Director Cameron Crowe reminisced about a similar time period while speaking about Bowie at the Television Critics Association. "He was always obsessed with music and art and never the business. It was always a young artist had moved him. He would reach out to that artist. Bruce Springsteen was somebody that caught his attention on the first album. He was talking about Bruce Springsteen in ... early stages of Bruce Springsteen's career."

Maybe Philadelphia will get another Bowie treat when Springsteen comes to the Wells Fargo Center on February 12.

*Young Americans was recorded in 1974 and early 1975 at Sigma Sound Studios on North 12th Street. Springsteen was off by a year.