A man walks into a bar with a box under his arm. He sets the box on the bar and tells the bartender, "I'll bet you $100 that there's something amazing in this box."
The bartender, intrigued, agrees to the bet and hands over the money. The man opens the box to reveal a tiny piano-playing frog. The frog starts playing a beautiful rendition of "I Believe I Can Fly" on the piano.
The bartender is astounded and asks the man, "Where did you find such a talented frog?"
The man replies, "Well, I came across a genie who granted me one wish. I wished for a talking frog who can play the piano."
The bartender is amazed and offers to buy the frog for $500. The man agrees, but warns the bartender, "Just be careful, he's a bit of a diva. Make sure you treat him well."
The bartender nods and takes the frog. Later that night, a regular at the bar asks the bartender about the frog. The bartender excitedly shows off the frog, and the regular asks, "Wow, what's his name?"
The bartender proudly declares, "He's a piano-playing frog named Kermit."
The regular looks confused and says, "Wait a minute, isn't Kermit a Muppet?"
The bartender shrugs and replies, "Well, he sure plays a mean piano, but he's a little green for a Muppet."