Teen sensation Alondra Santos performs La Copa de la Vida in the AGT semifinals.\r<br>\r<br>\r<br>\r<br>3 Shades of Blue, Daniella Mass, Alondra Santos and Piff the Magic Dragon Here are their performances: 3 Shades of Blue .\r<br>\r<br>Golden Buzzer performer Sharon Irving thrills the crowd with her take on Imagine.\r<br>\r<br>One-of-a-kind magician Piff the Magic Dragon takes his shot at the AGT finals.
