Dave Berry and Lisa Snowdon managed to arrange a 16,000 strong Mexican wave FLAWLESSLY! This image appears in the gallery:Jingle Bell Ball 2014: AMAZING Sunday Pictures Feat. Taylor Swift, Ed Sheeran And 5SOS! 45. Dave Berry and Lisa Snowdon managed to arrange a 16,000 strong Mexican wave FLAWLESSLY! Picture: Richard Johnson 89 images See the full gallery: Jingle Bell Ball 2014: AMAZING Sunday Pictures Feat. Taylor Swift, Ed Sheeran And 5SOS!