Scroll down for tour outline
Harry, who recently confirmed his relationship with American actress Meghan Markle, is likely to meet the Diamonds pop star at the Barbados event.
The Golden Anniversary Spectacular Mega Concert will be held on 30 November – Barbados' independence day.
Rihanna will headline a concert in Barbados
Rihanna will perform for thousands of fans including Prince Harry, alongside other talent from the island nation.
Harry will commence his royal tour on 20 November and will travel around Antigua and Barbuda, Barbados, Grenada, Guyana, St Kitts and Nevis, St Lucia, and St Vincent and the Grenadines.
The tour marks the 50th anniversary of independence for Barbados, the 50th anniversary of independence for Guyana, and the 35th anniversary of independence for Antigua and Barbuda.
Harry recently confirmed his relationship with Meghan Markle
During a press briefing for the trip, Harry's communications secretary Jason Knauf was asked how concerned royal officials were that the Prince's new relationship with girlfriend Meghan would overshadow the tour.
"Not concerned at all," said Jason. "As you can see it's a very busy, full and varied programme."
He added that the trip was something "Prince Harry himself has been preparing hard for, so we're really looking forward to it".
He is carrying out the tour on behalf of the Queen
Harry will have an entourage of ten people including Jason and three other communication officers, private secretary Ed Lane Fox, adviser Sir David Manning, two programme co-ordinators, a visit support officer and an orderly.
The Prince will carry out the 14-day visit on behalf of his grandmother, the Queen. The focus of his trip is to learn about local projects and initiatives including youth empowerment, sport for social development and conservation – causes which Harry himself continually champions.
This will be Harry's second trip to the Caribbean. In 2012 he embarked on a royal tour of the region also on behalf of the Queen, in honour of the Diamond Jubilee.
Harry's Tour Outline:
Sunday 20th November to Monday 21st November – Antigua
Tuesday 22nd November – Barbuda and Antigua
Wednesday 23rd November – St. Kitts and Nevis
Thursday 24th November – St. Lucia
Friday 25th November – St. Lucia
Saturday 26th November – St. Vincent and the Grenadines
Sunday 27th November – Travel day
Monday 28th November – Grenada
Tuesday 29th November until Thursday 1st December – Barbados
Friday 2nd December until Sunday 4th December – Guyana