Question:
Hole was an American alternative rock band formed by singer and guitarist Courtney Love and lead guitarist Eric Erlandson in Los Angeles, California in 1989. Influenced by Los Angeles' punk rock scene, and produced by Kim Gordon of Sonic Youth, the band's debut album, Pretty on the Inside (1991), attracted critical interest from British and American alternative press. Their second album, Live Through This, released 1994 by DGC Records, which featured less aggressive melodies and more restrained lyrical content, was widely acclaimed and reached platinum status within a year of its release. Their third album, Celebrity Skin (1998), which garnered them four Grammy nominations, marked a notable departure from their earlier punk influences, boasting a more commercially viable, "mature" sound.
Hole formed after Eric Erlandson responded to an advertisement placed by Courtney Love in Recycler in the summer of 1989. The advertisement simply read: "I want to start a band. My influences are Big Black, Sonic Youth, and Fleetwood Mac." "She called me up and talked my ear off," said Erlandson. "We met at this coffee shop, and I saw her and I thought "Oh, God. Oh, no, What am I getting myself into?" She grabbed me and started talking, and she's like "I know you're the right one", and I hadn't even opened my mouth yet." In retrospect, Love said that Erlandson "had a Thurston [Moore] quality about him" and was an "intensely weird, good guitarist." In his 2012 book, Letters to Kurt, Erlandson revealed that he and Love had a sexual relationship during their first year together in the band, which Love also confirmed. Love had been living a nomadic life, immersing herself in numerous music scenes and living in various cities along the west coast. After unsuccessful attempts at forming bands in San Francisco (where she was briefly a member of Faith No More) and Portland, Love relocated to Los Angeles, where she found work as an actress in two Alex Cox films (Sid and Nancy and Straight to Hell). Erlandson was a California native and a graduate of Loyola Marymount University, and was working as a royalties manager for Capitol Records at the time he met Love. Love had originally wanted to name the band Sweet Baby Crystal Powered by God, but opted for the name Hole instead. During an interview on Later... with Jools Holland, Love claimed the name for the band was inspired by a quote from Euripides' Medea that read: "There is a hole that pierces right through me." Love cited a conversation with her mother as the primary inspiration for the band's name, in which her mother told her that she couldn't live her life "with a hole running through her." Love also acknowledged the "obvious" genital reference in the band's name, alluding to the vagina, though stated that the primary source of the name was the conversation between her and her mother.
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What was Erlandson's background as a musician?

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The Marmalade is a Scottish pop rock band from the east end of Glasgow, originally formed in 1961 as The Gaylords, and then later billed as Dean Ford and the Gaylords. In 1966 they changed the band name to The Marmalade. The most successful period for the band, in terms of UK chart success, was between 1968 and 1972. From the early 1970s, after the original players began to drift away, the band evolved with many further changes and still exists to this day touring the nostalgia circuit.
In 1975, Knight linked up with former drummer Alan Whitehead to form 'Vintage Marmalade' with Sandy Newman (vocals, guitar, keyboards) and Charlie Smith (guitar). They were reunited with their old manager, Peter Walsh, to play all the hits on stage and had a full date sheet. Later in 1975, after Ford and the remaining members called it quits, Knight and Whitehead took over the name Marmalade with the new line-up, fronted by Newman. They signed a deal with Tony Macaulay's Target Records and in 1976, had what turned out to be their final Top 10 hit with the ominously entitled, Macaulay penned song, "Falling Apart at The Seams". The song also reached the easy listening charts in the U.S. and made the Top 50 of the Billboard Hot 100, becoming the group's last charting single on the U.S charts. Subsequent singles failed to chart. One of these was "Talking In Your Sleep", produced by Roger Greenaway and released in January 1978, six months ahead of the Crystal Gayle version of the same song, which became well known worldwide. Sandy Newman (ex-The Chris McClure Section, 1968-1970) has continued to front Marmalade since 1975, releasing a further eleven singles in the UK (excluding re-releases), seven of which were via Target Records, none of which have charted in the UK or US, and today they continue to tour the nostalgia circuit performing the band's full hit repertoire. Charlie Smith departed in 1977 to join Nicholson in Blue, and Garth Watt-Roy came in briefly for Marmalade's Only Light On My Horizon Now album, before leaving for the Q-Tips in 1978. He was replaced by guitarist Ian Withington, who appeared alongside Knight, Newman and new drummer Stu Williamson for the next album Doing It All For You (1979). Alan Whitehead left the band in 1978 to manage other pop groups and singers, which he has continued to do. He also appeared in the 2010 TV series Take Me Out and ran a lap dancing club.

What happened in the year 1978
Alan Whitehead left the band in 1978 to manage other pop groups and singers, which he has continued to do.