Necessity was the mother of the Dalton Brothers, a mysterious country band that debuted 30 years ago as part of a U2 show in Indianapolis.

Travel issues prevented supporting act Los Lobos from getting to the Hoosier Dome (later known as the RCA Dome) on time, so Luke, Duke, Betty and Alton Dalton stepped up to perform a short set the night after Halloween in 1987.

Fans close to the stage may have noticed the Dalton Brothers were actually the four members of U2 — including Adam Clayton in drag — having a laugh on one of the biggest tours of the decade.

"We basically just put together the Dalton Brothers in about a half an hour," the Edge told IndyStar. "Most of that was spent getting the clothes right. It was about five minutes spent on rehearsing the music."

Time will tell if the Dalton Brothers ride again when U2 commemorates the 30th anniversary of "The Joshua Tree" Sept. 10 at Lucas Oil Stadium. The oddity of a band serving as its own opening act is recalled in the sixth episode of “Dave’s Old Interview Tapes," a podcast that revisits IndyStar musical conversations between 1998 and 2004.

Guitarist the Edge talked to IndyStar before U2 played Bankers Life Fieldhouse in 2001. In addition to audio from that chat, the podcast episode features commentary by Laura Duncan — music director and on-air personality for WTTS-FM (92.3).

Duncan attended the Hoosier Dome show and remembers more than a few boos directed at the twangy and unknown Dalton Brothers. From his onstage perspective, the Edge recalled a reception of "abject indifference" for the songs "Lucille" and "Lost Highway."

The Daltons made two more appearances on the original "Joshua Tree" tour: Nov. 18 in Los Angeles and Dec. 12 in Hampton, Va.

Episode Four:Slash regrets nights GNR didn't answer bell

Episode Five:Billy Idol recalls MTV’s star-making days

You can listen to the Edge episode of "Dave's Old Interview Tapes" at:

>> IndyStar.com

>> iTunes

>> SoundCloud

>> Google Play

>> Stitcher

>> TuneIn Radio

Duncan talks about having drinks with U2 vocalist Bono and asking the Edge about his experience making 2008 documentary film "It Might Get Loud."

Elsewhere in the episode, the Edge talks about his appreciation for classic Motown tunes and he shares tips for naming a band.

The eight-episode first season of "Dave's Interview Tapes" includes episodes devoted to Guns N' Roses guitarist Slash, Foo Fighters leader Dave Grohl and Dead & Company members John Mayer and Mickey Hart.

Episode One:Dave Grohl’s bond with Howard Stern, David Letterman

Episode Two:John Mayer, Mickey Hart and the Grateful Dead's legacy

Episode Three:B.B. King treated every gig with care

Call IndyStar reporter David Lindquist at (317) 444-6404. Follow him on Twitter: @317Lindquist.