Alicia Keys performs in front of millions of people during Germany's 'Wetten Dass', and her performance was electrifying!!! What is Wetten, dass..?, you ask? It's German for "Wanna bet that..?"), a long-running German-language entertainment television show. It is the most successful Saturday television show in Europe. It's based off of the British show 'You Bet'! and the American show' Wanna Bet?'.