Madonna Louise Ciccone is an American singer, songwriter, and actress. Referred to as the 'Queen of Pop', she is regarded as one of the most significant figures in popular culture. Madonna is noted for her continual reinvention and versatility in music production, songwriting, and visual presentation. She is also known for pushing the boundaries of artistic expression in mainstream music while remaining completely in charge of every aspect of her career. Her works, which incorporate social, political, sexual, and religious themes, have generated both critical acclaim and controversy. Madonna is often cited as an influence by other artists.
Arjen Anthony Lucassen is a Dutch singer, songwriter, multi-instrumentalist musician and record producer best known for his long-running progressive metal/rock opera project Ayreon. Lucassen started his career in 1980 as the guitarist and backing vocalist of Dutch band Bodine as Iron Anthony, before joining Vengeance in 1984. After eight years he left the band, wanting to go into a more progressive direction, and released two years later an unsuccessful solo album entitled Pools of Sorrow, Waves of Joy under the nickname Anthony.