Short answers, pulled from the story.
Lill-Babs was a Swedish singer, actress, and television host whose full birth name was Barbro Margareta Svensson. She was born on the 9th of March 1938, in Järvsö, Sweden, and was active from the early 1950s until her death on the 3rd of April 2018.
Record producer Simon Brehm gave her the name Lill-Babs as a play on words connecting her to Alice Babs, an older and at the time better-known Swedish singer. Brehm managed her career from her professional debut until his death in 1967.
Lill-Babs represented Sweden at the Eurovision Song Contest 1961 with the song "April, april", performed in Cannes. The song had been performed by Siw Malmkvist in the Swedish national final, but Lill-Babs was chosen to take it to the international contest.
Yes. Björn Ulvaeus and Benny Andersson wrote and produced her 1971 hit song "Welcome to the World", and all four future ABBA members sang on the recording.
In 1963, Lill-Babs was the main guest star on the SVT teen music show Drop-In when the then-unknown Beatles also appeared. The Beatles asked for her autograph.
Lill-Babs died on the 3rd of April 2018, following cancer and heart failure. Her funeral was held at Järvsö Church on the 28th of May 2018, and she was buried in the churchyard there.