Emap and GCap Media are developing a new weekly music chart in conjunction with ITV's long-running Saturday morning TV show CD:UK. It will be the first where tracks can be voted down as well as up.
The chart will be broadcast on 65 commercial radio stations in addition to CD:UK.
Called MiTrack, the chart will go live to coincide with the arrivals of new CD:UK presenters Myleene Klass, Lauren Laverne and Johny P.
Viewers of the Saturday morning show can vote for their favourite, or not so loved, tracks on the CD:UK and commercial radio websites.
Tammy Hoyle, the producer of CD:UK, said the chart would be a better reflection of music people actually wanted to listen to than other charts based on physical sales or downloads.
"TV music shows that rely on record sales and paid downloads are not necessarily representative of popularity and there is nothing that currently reflects both the promo period and the sales period," she said.
"The significant impact of broadcasting across the UK's largest TV and radio networks and the interactive nature of the voting will deliver a truly representative chart."
The Capital FM managing director, Keith Pringle, said the chart would help commercial radio stations prise listeners away from BBC Radio 1's chart.
"In bringing together the powerful combination of commercial radio and ITV to share content and cross-promote, we are delivering real value to listeners and viewers, while levelling the playing pitch with the BBC."
News of the new chart comes just days after the launch of new commercial radio countdown the AC Chart.
Fronted by Melanie Sykes and Heart 106.2's Nick Snaith, the AC Chart will be compiled from album and music DVD sales, as well as singles and radio airplay, and will target 25- to 44-year-olds.
Aiming to reflect the nation's biggest-selling artists rather than only singles sales, the chart will be broadcast on 54 commercial stations.
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