Welcome to the 318th edition of Phish.Net's Mystery Jam Monday, the most difficult of March. The winner will receive an MP3 download code courtesy of our friends at LivePhish.com / Nugs.Net. To win, be the first person to identify the song and date of these four mystery clips, which are connected by a theme – the theme needn't be part of the correct answer. Each person gets one guess to start – if no one answers correctly in the first 24 hours, I'll post a hint. After the hint, everyone gets one more guess before Wednesday at 10 AM PT / 1 PM ET. Good luck!

Answer: Congrats to @justino on his fifth MJM win – now it's not a matter of if, but a matter of when he reaches the Holy MJM Emeritus status. This week's puzzle, another from the mind of the @wumbo, had some Jerry undertones, some fantastic sounding music, Type II all over it, and the same song ("Tweezer") on the same month and day (August 1st), four times: 8/1/15 "Tweezer," 8/1/98 "Tweezer," 8/1/14 "Tweezer," and 8/1/99 "Tweezer." @justino fell for none of the traps, and in less than 200 minutes, cut down the nets on #5. Monday brings us MJM319, and a resetting of the difficulty down to the bottom rung.