Paul McCartney released his debut solo album, McCartney, in April 1970.A month later, it reached no. 1 on the charts. In the U.S. and Canada, it peaked at the top spot. In the U.K., it rose to no. 2.

It wasn’t clear in the 1970s that Wings was anything more than a side project for Paul McCartney, but there was one album he called the most authentic.

Paul McCartney’s three namesake solo albums — "McCartney," "McCartney II" and "McCartney III" — will be sold in a special box set for the first time ever this summer. ... (1970), "McCartney ...

The 78-year-old McCartney plays all instruments and sings all the vocals, just like his two previous eponymous solo albums, 1970’s “McCartney” and “McCartney II,” released in 1980.

However, Paul McCartney's journey was a bit rockier. His first two solo albums - 'McCartney' in 1970 and 'Ram' in 1971 - had a lukewarm reception.

UPDATE (11/19): Paul McCartney has pushed back the release of his new album, McCartney III, to December 18th, citing “unforeseeable production delays” on Twitter. Unforeseeable production ...