- Louis Armstrong & Ella Fitzgerald
- Lauren Pritchard, Brian Johnson, Jonathan B. Wright, Gideon Glick, Skylar Astin, John Gallagher, Jr., Jonathan Groff, Lea Michele, Lilli Cooper, Phoebe Strole & Remy Zaken
- René Auberjonois
- Luciano Pavarotti, Zubin Metha, Wandsworth School Boys Choir, John Alldis Choir & London Philharmonic Orchestra
- The Miracles
- Lilli Cooper, Lauren Pritchard, Brian Johnson, Jonathan B. Wright, Gideon Glick, Skylar Astin, John Gallagher, Jr. & Jonathan Groff
- Lou Gramm
- Jonathan Groff, Brian Johnson, Jonathan B. Wright, Gideon Glick, Skylar Astin, John Gallagher, Jr., Lea Michele, Lilli Cooper, Lauren Pritchard, Phoebe Strole & Remy Zaken
- Lil Wayne, Jae Millz, Gudda Gudda & Tyga
- V Factory
- Lea Michele & Jonathan Groff
- London Symphony Orchestra, Luciano Pavarotti & Richard Bonynge
- Red Rider
- Lea Michele, Jonathan Groff, Brian Johnson, Jonathan B. Wright, Gideon Glick, Skylar Astin, John Gallagher, Jr., Lilli Cooper, Lauren Pritchard, Phoebe Strole & Remy Zaken
- Lil Wayne & Jay Sean
- The Love Unlimited Orchestra
- Lumidee
- Sak Noel
- Laza Morgan
- London Music Works & Clint Mansell
- Nicolette Larson
- Vega4
- Lloyd featuring Andre 3000 & Nas
- Ne-Yo featuring Jennifer Hudson
- Obie Trice, 50 Cent & Eminem
- Louis Armstrong & Sy Oliver's Orchestra
- Nelly & Keri Hilson
- The Troggs
- Leon-Wooley, Bruno Campos & Anika Noni Rose
- Terror Squad
- Lulu
- Lupe Fiasco & Sarah Green
- London Philharmonic Orchestra, David Parry & Pieter Schoeman
- J Alvarez
- London Philharmonic Orchestra, David Parry & Finghin Collins
- Latvian Philharmonic Orchestra, Ilmar Lapinsch & Riga Radio Choir
- The Lorax Singers
- London Symphony Orchestra & Antal Doráti
- Mickey & Sylvia
- The Shangri-Las
- MyLifeAsEva
- Lisa Lisa & Cult Jam, Full Force, Cult Jam & Lisa Lisa
- Warren Barfield
- Major Harris
- NewWorldSon
- The Muppets, Amy Adams, Andrew Walter, Jason Segel & Chris Cooper
- Luciano Pavarotti, Zubin Metha, Orchestra del Teatro dell'Opera di Roma & Orchestra del Maggio Musicale Fiorentino
- Victoria Justice, Victorious Cast & iCarly
- Steve Angello & Third Party
- Red Carpet, Thomas Gold & Steve Aoki
- The Diamonds
- Saigon Kick
- LaBelle
- Sophia Fresh
- JJ Weeks Band
- Oscar D'León
- Leroy Anderson
- Sam the Sham & The Pharaohs, The Pharaohs & Sam the Sham
- iCarly & Victorious Casts
- Meryl Streep
- Luciano Pavarotti, National Philharmonic Orchestra & Giancarlo Chiaramello
- Oliver James
- Lilla Crawford
- Paul Mauriat
- One Day As a Lion
- Tessanne Chin & Adam Levine
- Nathan Pacheco & Chris Cooper
- Larry Greene
- Lynn Anderson
- Stacy
- Lenny Cooper & Colt Ford
- Laura Bell Bundy, Matthew Morrison & Linda Hart
- Little Boots
- Larry Graham
- Jay-Z
- London Symphony Orchestra, Sir Colin Davis & Stephen Kovacevich
- Luciano Pavarotti, National Philharmonic Orchestra, Richard Bonynge, Dame Joan Sutherland & The London Opera Chorus
- Robin Sparkles
- John P. Kee & New Life
- Petra
- Lyfe Jennings featuring LaLa Brown
- Lindana
- Leah Greenhaus, Marissa O'Donnell & Sutton Foster
- London Festival Orchestra, Ferdinand Lang, London Festival Choir & Rita Streich
- London Festival Orchestra, Ferdinand Lang & Josef Sakonov
- Lou Christie
- Loona
- London Festival Orchestra, Ferdinand Lang, Dietrich Fischer-Dieskau, Emmy Loose, Paul Schoeffler & Rita Streich
- Liz Callaway
- Jonathan Dokuchitz, Kelsey Grammer & Liz Callaway
- London Festival Orchestra, Ferdinand Lang, Dietrich Fischer-Dieskau, London Festival Choir, Paul Schoeffler & Rita Streich
- London Festival Orchestra, Ferdinand Lang, Dietrich Fischer-Dieskau, Paul Schoeffler & Rita Streich
- Luis Bacalov & Edda Orso
- The Chordettes
- Jadakiss & Faith Evans
- Jack Johnson & Matt Costa
- Lil Jon & The East Side Boyz featuring Pitbull & Daddy Yankee
- Laura Bell Bundy & Legally Blonde Ensemble
- Lee Ving, Dave Grohl, Taylor Hawkins, Alain Johannes & Pat Smear
- Luis Bacalov