Watford attacker Dodi Lukebakio struck a hat-trick for Fortuna Dusseldorf in their 3-3 draw with Bayern Munich.
The champions led 2-0 through Niklas Sule and Thomas Muller but Lukebakio - on loan from Watford - pulled one back.
Muller scored his second but Lukebakio, 21, scored two more after getting in behind the hosts' defence both times.
The Belgian, who has played 15 minutes of football for Premier League side Watford, is the first player to score a Bundesliga hat-trick against Bayern since Ebbe Sand for Schalke in 2001.
Promoted Fortuna remain in the relegation zone, having won only twice all season.