Norton handed Pratt a set of cards and asked him to do some magic.
Pratt agreed but said the trick had only a 50% success rate.
Will.i.am became his volunteer and Pratt asked him to pick a card.
Pratt asked Will.i.am to place the card on the deck he took it from, and to shuffle the deck so that Pratt couldn't find the card.
Pratt then mixed the middle deck with the rest of the cards.
And asked Will.i.am to shuffle it four more times.
Pratt then said he had four chances to find the card and he appeared to be struggling.
He didn't get it right the first time...
At this point he asked Will.i.am to just tell him what card it was (apparently an "A of hearts").
For his fourth attempt he looked pretty sure he got the card.
Pratt started pulling cards out two at a time.
In a plot twist, Pratt said the trick was not over, and needed a "magic fist bump".