Duffy is up for four awards at this year's BRIT Awards - and you can can help her win two of them.
Both the Best British Single and Best Breakthrough Act categories will be decided by a public vote, so get ready to throw your support behind Duffy.
Best British Single
First up, voting on the Best British Single category opens today (Monday 2nd Feb).
Duffy's up against some excellent competition from Adele, Alexandra Burke, Coldplay and Dizzee Rascal, but with over 500,000 copies of the single sold in the UK alone, we reckon Duffy deserves the win.
To vote for 'Mercy' for Best Single register here - let's get Duffy through!
Voting will close on Friday 13th Feb.
Best Breakthrough Artist
Duffy is also going head-to-head with The Ting Tings, Adele, The Last Shadow Puppets and Scouting For Girls for the Best British Breakthrough Act.
Voting for this category will open on Saturday 7th Feb.
For more information and to get voting online when the time comes click here. Voting closes on Sunday 15th Feb 2009 at 7.00pm.
Come on Duffy fans - let's make sure Duffy gets the awards her music so richly deserves.