Labour leader Ed Miliband has replied to former pop star Myleene Klass's criticism of his mansion tax by tweeting a "Pure and Simple" plan for his proposal.

The former Hear'Say star, who had a hit with Pure and Simple in 2001, challenged Miliband when they appeared on ITV's The Agenda by saying: "You may as well just tax me on this glass of water. You can't just point at things and tax them.

"For me, it's so disturbing - the name in its own right: 'mansion tax'. Immediately you conjure up an image of these Barbie-esque houses, but in London, which is where 80% of the people who will be paying this tax actually live, have you seen what that amount of money can get you? It's like a garage."

At the time, Miliband seemed a little lost for words, but after taking some time to gather his thoughts, he has now attempted to defend the proposed policy.

The Labour Party has said that it will introduce a mansion tax on properties worth more than £2m if the party wins the general election in 2015.

The proceeds from the somewhat controversial tax would go into a £2.5bn ($4.1bn, €3.1bn) "time to care" fund to create 20,000 more nurses, 8,000 more GPs, 5,000 more care-workers and 3,000 more midwives by 2020.