Heaslip has been appointed skipper for the tournament even though Brian O'Driscoll, who has filled the post on a permanent basis since 2004, is fit after recovering from an ankle injury.
"I'm still wet behind the ears so it's great, I'm buzzing. It's really exciting to come here," the Leinster number eight said.
"I found out about the captaincy last Wednesday evening. Declan gave me a call to go and see him.
"In I went and after a bit of chit chat he asked me to do the job and I nearly had to stop myself jumping across the table to kiss him, which would have made it really awkward in a room with just two guys!
"I was really proud and humbled by it all. There were all sorts of emotions flying around.
"I made the obligatory call to the parents. My dad straight away said 'fair play, you've been promoted, but I'm still colonel while you're major, so I'm pulling rank on you'. I said 'thanks dad, back to reality as usual'."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
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The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.