Def Leppard is back with the fourth installment in their tour diary, sharing behind-the-scenes footage of their shows in Buenos Aires, Argentina, and Hollywood, Florida.

"This is the last South American show, Buenos Aires, Argentina," frontman Joe Elliott says in the clip. "It's been a blast. Absolute blast."

Before the Buenos Aires concert, guitarist Vivian Campbell predicts it will be the "best audience yet."

“Not that the previous audiences have been anything but spectacular, but Buenos Aires, I have a strong suspicion,” Campbell says. “It doesn’t change how we play. We always try our best, regardless. We always give at least 11%, sometimes 12.”

And it's good they like Buenos Aires, because they got stuck there. After taking off in their joint Def Leppard/Mötley Crüe jet, they had to return because of mechanical problems. They wound up stuck in the airport lounge for about seven hours before they finally left the airport.

The clip also features footage from off and on the stage during their show in Hollywood, Florida, including Rick Savage warming up backstage, and a drum duet between Rick Allen and Mötley's Tommy Lee.

“It was a really good way to finish off a month away from home doing this whole South American kinda expedition as it were,” Elliott says of the show. “Absolutely very exciting, especially at this stage in our career to be able to do something like this is absolutely astonishing.”

Next up the tour hits the U.K., with the first show May 22 in Sheffield, England. A complete list of dates can be found at defleppard.com.

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