Bless her, 121 shows is no joke. That said, from what I know about Adele's vocal regime it pretty much consists of red wine and B&H cigarettes. It's no wonder the stamina isn't there. People go hard on Mariah but she still sounds phenomenal when she puts the effort in. On the SSFT I could not believe that the Adele's and Sam Smiths were this generation'a equivalent. Now it is disturbing that both of those singers have needed vocal surgery so soon into their career.., maybe it's time to put down the Marlborough Lights and get some proper vocal coaching?