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This Sunday JLS take on The Wanted for the Big Top 40 No. 1 spot.
The Wanted are currently enjoying a second week at the top of The Vodafone Big Top 40 but this weekend JLS will be doing their best to steal the title.
Aston, JB, Marvin and Oritse have previously scored 3 No. 1s in the chart so have a good chance of getting to the top but it won't be easy.
'She Makes Me Wanna' will have to get past The Wanted's 'Glad You Came' which is one of the fastest selling songs of the year.
Rich and Kat will be back on Sunday at 4pm to let you know if JLS can beat The Wanted to claim their fourth Big Top 40 No. 1.