Keith Urban's Las Vegas residency has attracted fans from around the country and the world, and they were left ecstatic when he revealed that there were additional shows for them to catch.MORE: Nicole Kidman and Keith Urban's $80k wedding favours had special messageHowever, in a recent interview, the singer opened up about the unfortunate moment that led to that situation and how it all happened.WATCH: Keith Urban shares glimpse inside family life with unexpected detailIn an interview with PEOPLE (The TV Show!), he recalled the call that he received asking if he'd be able to add more shows to his residency after Adele was forced to tearfully cancel hers."We got a very panicked call one night, asking if we could fill in a bunch of shows and it worked out perfect, we were able to do it," he said.MORE: Nicole Kidman and Keith Urban bring the heat for romantic beachside snapshotHe further shared why he was so excited to be performing at The Coliseum at Caesars Palace, saying: "I love that room.