On April 30, 2002 Brian May and Roger Taylor gave a special one-off performance at the concert to honor the Dutch Queen's birthday. This performance was not officially announced, however rumors circulated that they would appear. Brian and Roger appeared to promote the We Will Rock You musical. The performance was released on a Holland CD-ROM disc.

Queen's Day Concert - April 30, 2002

Radio Ga Ga
Written by Roger Taylor
Performers: Queen (Brian May and Roger Taylor)
Appears on: Holland Queen's Day CD-ROM
Roger takes the lead position on stage and sings lead vocals while Brian handles guitar duties.

Tie Your Mother Down
Written by Brian May
Performers: Queen (Brian May and Roger Taylor)
Appears on: Unreleased
Brian May sings lead vocals and plays lead guitar. Roger steps behind the kit to play drums. This was not included on the Queen's Day CD-ROM, but was televised.

Another One Bites The Dust
Written by John Deacon
Performers: Queen (Brian May and Roger Taylor) + Patti Russo
Appears on: Unreleased
Patti Russo, best known for her work with Meat Loaf, provided lead vocals for this Queen classic. Roger plays drums and Brian plays lead guitar. This was not included on the Queen's Day CD-ROM, but was televised.

Under Pressure
Written by Queen and David Bowie
Performers: Queen (Brian May and Roger Taylor) + Patti Russo
Appears on: Holland Queen's Day CD-ROM
Roger, again, steps from behind the kit to sing David Bowie's part, while Patti Russo handles Freddie's lyrics.

Hammer To Fall (Slow/Fast Version)
Written by Brian May
Performers: Queen (Brian May and Roger Taylor)
Appears on: Unreleased
Brian May sings lead vocals and Roger Taylor plays drums. The arrangement is similar to the Another World Tour and the 2005/2006 Queen + Paul Rodgers Tour.

The Show Must Go On
Written by Queen
Performers: Queen (Brian May and Roger Taylor) + Patti Russo
Appears on: Holland Queen's Day CD-ROM
Patti Russo sings lead vocals, Roger plays drums, and Brian plays lead guitar.

No-One But You (Only The Good Die Young)
Written by Brian May
Performers: Queen (Brian May and Roger Taylor)
Appears on: Unreleased
Roger and Brian share lead vocals in this rare performance of No-One But You.

We Will Rock You
Written by Brian May
Performers: Queen (Brian May and Roger Taylor)
Appears on: Holland Queen's Day CD-ROM
Brian sings lead vocals and plays guitar, while Roger steps back behind the kit to play drums.

We Are The Champions
Written by Freddie Mercury
Performers: Queen (Brian May and Roger Taylor) + Trijntje Oosterhuis
Appears on: Holland Queen's Day CD-ROM
Dutch vocalist Trijntje Oosterhuis sings lead vocals to close out the show. Roger plays drums and Brian plays guitar.