LATEST: Isaac Hanson has proved he is recovering well from heart surgery by holding a fundraising walk in West Hollywood on Wednesday (31Oct07). The 26-year-old was joined by his brothers on the walk in a bid to raise awareness for poverty and HIV/AIDS in Africa. Isaac, who underwent surgery to treat a pulmonary embolism earlier this month (4Oct07), tells TMZ.com he was "feeling really, really good" after the event.