Career
Her single "Perfect Day" will also be released in the rest of Europe as her European debut single. During the fourth series of, Nikki performed the songs:
4Live: Super Duper Love (Joss Stone)
Liveshow 1 (Las Vegas): Pretty Vegas (INXS)
Liveshow 2 (The "80s): Tell lieutenant To My Heart (Taylor Dayne)
Liveshow 3 (Dutch Product): Rain Down On Maine (Kane)
Liveshow 4 (Disco): If I Can"t Have You (Yvonne Elliman)
Liveshow 5 (Musical): Climb Every Mountain (The Sound of Music)
Liveshow 6 (Britpop): Bleeding Love (Leona Lewis)
Liveshow 7 (Dutch Songs): Afscheid (Volumia!)
Liveshow 8 (Love): River Deep, Mountain High (Tina Turner), From This Moment (Shania Twain)
Liveshow 9 (Bigband): Valerie (Amy Winehouse), I Who Have Nothing (Shirley Bassey)
Liveshow 10 (Songs selected by Radio 538-DJs): Mesmerized (Faith Evans), All My Life (Krezip)
Liveshow 11 (Final): River Deep, Mountain High (Tina Turner), When The Spirit Of The Lord (Fred Hammond), Queen Of The Night (Whitney Houston), On My Own (Michael McDonald & Patti Labelle), "Hello World" (first single).