Desmond Tutu, South Africa's anti-apartheid icon, Nobel peace laureate and a man dubbed the "moral compass of the nation," marked his 90th birthday Thursday with a rare public appearance.
The jovial Tutu, who even today speaks out against injustice, attended a special thanksgiving service at St George's Cathedral in Cape Town, where he was appointed South Africa's first black Anglican archbishop.
The service opened with a rendition of "Happy Birthday."
Tutu, wearing his trademark purple shirt and white collar, under a black suit, waved in acknowledgement, from a wheelchair.
He sat next to his wife Leah.
Tributes and well-wishes for the revered anti-apartheid icon have poured in from presidents, individuals and organisations from around the globe.
President Cyril Ramaphosa lauded Tutu "as a fighter in the cause for human rights, for equality and for social justice" throughout the 59 years since his ordination.
He paid tribute to "The Arch," as he is fondly called in South Africa, "for a life that has been well-lived in honesty, integrity, fearlessness and service to humanity."
US President Joe Biden said he was "inspired by his personal commitment to championing human rights and to always speaking out for what is right."
"The world first came to know Archbishop Tutu as he modeled the highest tenets of his faith in challenging the injustice of apartheid in South Africa," said Biden in a statement.
"And in the years since, the world has continued to learn from Archbishop Tutu's message of justice, equality, and reconciliation."
' Voice of conscience'
A tireless activist, Tutu has in recent years slammed even the ruling African National Congress (ANC) -- the vanguard of the fight against white-minority rule -- for cronyism and nepotism after apartheid ended in 1994.
In the past, he has confronted homophobia in the Anglican Church, challenged Nelson Mandela over generous salaries for cabinet ministers and stridently criticised the corruption that mushroomed under ex-president Jacob Zuma.
"At times when we have found ourselves losing our way, you have taken us well to task," said Ramaphosa.
"For nearly three decades, yours has been a voice of conscience, guiding us and motivating us to do better by our people," he said.
Ordained at the age of 30 and appointed archbishop in 1986, Tutu lobbied for international sanctions against apartheid, and later for human rights on a global scale.
He turned his focus on the thorny issue of reconciliation in the post-apartheid era as head of the Truth and Reconciliation Commission.
He retired in 2010 and rarely appears or speaks in public now.
He was last seen in public in May, when he and his wife got their Covid-19 vaccinations.
Tutu was diagnosed with prostate cancer in 1997 and has undergone repeated treatment.
After the service, the archbishop emeritus and his wife Leah will spend the day at home with daughters Naomi and Mpho, grandchildren and great-grandchildren.
The day will culminate with online speeches from the Dalai Lama, former UN rights chief Mary Robinson, Mandela's widow and campaigner Graca Machel, and South Africa's ex-ombudswoman Thuli Madonsela, who is widely respected for her exposure of corruption.
The line-up of speakers is a reminder of Tutu's values, surrounding himself with rights advocates at a time when South Africa's current leaders are better known for lavish lifestyles and billion-dollar bank accounts.