Former President Jimmy Carter, who has been in hospice care since last year, will celebrate his 100th birthday Tuesday at his home in Plains, Georgia.From peanut farmer to state politician to the 39th president of the United States, Carter's legacy includes passing landmark energy bills, doubling the land of national parks, and deregulating the oil and gas industries while creating the strategic petroleum reserve.Internationally, then-President Carter helped secure the Camp David Accords, a historic peace agreement between Israel and Egypt. He also won a Nobel Peace Prize for his work in human rights and social welfare.In retirement, Carter worked alongside his late wife, Rosalynn Carter, as an advocate for Habitat for Humanity. Rosalynn died in November 2023. It was the last time the former president was seen in public.Ahead of his 100th birthday, stars and leaders most recently paid tribute to Carter as the "rock and roll president" at a music charity gala in Atlanta."He loved music and he loved all kinds of music," grandson Jason Carter said at the event. "He would even celebrate music from all over the world, of course. He traveled to over 100 countries and in every single place, he engaged with people through music."The Carter family says the former president is still thinking about politics, supporting President Joe Biden's decision to drop his re-election bid and saying he's excited to vote for Vice President Kamala Harris.Next month, Carter will receive the Holbrooke Lifetime Achievement Award, recognizing his work writing more than 30 books about peace and social justice.