Rap artist son of Liberal leadership candidate Joyce Murray composes song for her campaign

Justin Trudeau may have the money and the inside track in the Liberal leadership race but Joyce Murray has a song.

Murray's son, Baba Brinkman, is an accomplished rap artist and, as a show of support, has composed a song for her.

In the catchy tune titled Cooperation Time, Brinkman touts the Vancouver area MP's call for a one-time cooperation effort with the Greens and the NDP to beat the Conservatives in the 2015 election.

Murray's campaign seems to be gaining some momentum.

[ Related: Leadership candidate Marc Garneau challenges Justin Trudeau to a one-on-one debate ]

On Tuesday, Murray held a press conference announcing that Senator Céline Hervieux-Payette has endorsed her ahead of her campaign's Quebec tour.

Last week, environmental guru David Suzuki penned an open letter to his supporters endorsing Murray. Suzuki's endorsement shouldn't be discounted. The popular — yet polarizing — figure has over 238,000 Facebook supporters and over 40,000 Twitter followers.

[ Related: Liberal leadership candidate George Takach exits race, throws support behind Trudeau ]

Murray is also expected to get a boost from pro-cooperation advocacy groups, as explained recently by the Canadian Press.

Leadnow.ca and several other groups are urging their members to sign up as Liberal party supporters in order to promote the idea of electoral co-operation among progressive parties to ensure defeat of Prime Minister Stephen Harper's Conservatives.

Leadnow.ca boasts some 225,000 members, a huge pool of potential supporters for leadership contenders to tap into.

This is still Justin Trudeau's race to lose, but Murray is quickly becoming the 'other one' to watch.

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