The Voice coaches Seal, Keith Urban, Delta Goodrem and Joel Madden admit they are yet to sign on for the second series of Nine Network's hit reality singing show.
Madden let the news slip during a press conference for The Voice today when discussing the remaining four artists Darren Percival, Rachael Leahcar, Karise Eden and Sarah De Bono in this series.
"We all want to be here (for series two), but we have no information," Madden said.
Urban said: "We're working on it."
Nine has already announced The Voice will return in 2013 and were expecting the coaches to take up the option of a second series.
However, Madden said he has not seen any paperwork about the new series and none of the coaches have committed to returning.
Seal said committing to a new series was difficult for all the coaches because they are all performing musicians.
The British singer said the show had proved not only to be a phenomenal success for Nine, with more than two million viewers tuning into last night's semifinal, but also a great experience for the coaches.
"We are fortunate ... somehow making the right decision to go into this great concept," Seal said.
"Of course we would love for this experience to continue again, as artists it's changed us, but we all have a career.
"We are working musicians and singers and working responsibilities, so there's more to it than that (re-signing)."
The Voice's grand final will screen Sunday night with the last four contestants Percival, Leahcar, De Bono and Eden all performing an original and a cover song.
Nine has changed the voting time frame in the lead-up to the final and have now opened the lines for the entire week.
Madden said he will use all his influence, including telling his army of more than 650,000 Twitter followers, to vote for his charge De Bono.
"If I can influence people voting for Sarah, in any way shape of form, I will," Madden said.