The ad, which breaks in today's (Thursday's) edition of The Times, features 40 prominent Labour donors with a line from each that expresses their reason for donating to the party. The ad runs with the line: "We believe in a Britain where enterprise and aspiration are combined with fairness and social justice. That's why we're proud to help fund the Labour Party."
The campaign was devised by the Yo! Sushi founder and Labour donor Simon Woodroffe and created by Beattie.
Beattie previously worked for the party when he was the chairman of TBWA\London. TBWA was Labour's agency of record from 2000 to 2005, and produced the campaigns that helped it win the general elections in 2001 and 2005.
The Labour Party chairman, Hazel Blears MP, said: "People support political parties because they share their values and goals. I am delighted that today these people have come together to express their support for Labour."
The ad breaks as Labour remains on the back foot over cash-for-peerages allegations. In January, a senior adviser to Labour's city academy programme, Des Smith, told an undercover reporter that wealthy donors could obtain honours by giving money to the scheme.
This week, a Labour official advised a donor to conceal on his nomination form for a peerage the fact he had lent the party £250,000.
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