The band Opus guested on princely invitation in Monaco:

There, an exhibition was opened on the occasion of this year's 90th birthday of Princess Gracia Patricia alias Grace Kelly. With a lot of glamor, many celebrities - and "live is life".

When "Prince Albert Alexandre Louis Pierre Rainier Grimaldi" invietes to Monaco, Opus does not say no:

Last October, Opus received the invitation to Grace Kelly's (1929-82) 90th birthday celebration. Before the big celebrations in the coming November, the exhibition "Grace Kelly, 90 Years" was already opened, with a lot of glamor - and also live music by Opus.