Successfully complete the following tasks to unlock the corresponding trophy

Unlock Feet Of Fury:
On the Expert difficulty setting get your first Sing and Dance Platinum Record.

Unlock Karaoke Revolution Hall Of Fame Option:
Get 50 Diamond Records to unlock this option at the 'Extras' menu.

Unlock Karaoke World Tour:
Complete 50 songs

Unlock Wall To Wall Platinum:
Get 50 Platinum Records

Unlock Diamond Mic:
Get 50 Diamond Records

Unlock Gold Master:
Get 50 Gold Records

Unlock 80s Maniac:
Complete the 80s Set

Unlock Best New Duo:
Get your first Duet Platinum Record

Unlock Dancing Fool:
Get your first Sing and Dance Platinum Record

Unlock Perfect Pair:
Get your first Duet Diamond Record

Unlock Diamond Miner:
Get your first Diamond Record

Unlock Platinum Debut:
Get your first Platinum Record

Unlock Karaoke Millionaire:
Get 1,000,000 total points

Unlock Oldies But Goodies:
Complete the Oldies Set

Unlock Rock Star:
Complete the Rock Set

Unlock The Big Romantic:
Complete the Ballads Set

Unlock The Boss Of Boogie:
Complete the Dance Genre Set

Unlock True Teamwork:
Complete the True Duet Set