NEW YORK (AP) — AC/DC is finally releasing its music digitally on iTunes.

Columbia Records and Apple announced Monday that the classic rock band's music will be available at the iTunes Store worldwide.

Sixteen studio albums will be released, including "High Voltage" and "Back in Black," which is already in the Top 30 on iTunes' top albums chart. Two of the group's albums are also in the Top 100 and several of the Australian band's songs are in the Top 200.

AC/DC was one of the few acts that would not release music through the digital outlet. Two years ago Apple struck a deal with The Beatles' record label, EMI Group, and management company, and began selling the group's music. Kid Rock, who had also been against selling his music through the digital retailer, is releasing a new album, "Rebel Soul," on Monday and it's available on iTunes.

Silvio Pietroluongo, Billboard's director of charts, said AC/DC's decision isn't shocking.

"It's something that I think artists realize they need to do in order to get their music into the hands of their fans and to make more money," he said. "Right now with CD sales being what they are, touring is the main source of income and not every band is equipped to be out on tour 200 days a year to make the kind of money the need to make, or want to make."

Garth Brooks, however, has yet to release his music on iTunes. Pietroluongo said he believes the country star will come around, but he's not sure when that will be.

Four of AC/DC's live albums and three compilation records are also available. The statement said the songs have been mastered for iTunes "with increased audio fidelity."

The group's first live album in 20 years, "Live at River Plate," is out Tuesday.

When AC/DC announced the release of their new album the other day, the good news was offset by some bad: Founding guitarist Malcolm Young was no longer in the band. Seeing that he wasn’t involved in the recording of the album due to an undisclosed illness at the time, the news wasn’t all that surprising.

According to news reports, Young is being treated for dementia in a Sydney nursing facility. The 61-year-old guitarist was moved into the full-time care facility after suffering a stroke last year.

A family friend told the Sydney Morning Herald, ”If you were in the room with [Malcolm Young] and walked out, then came back in one minute later, he wouldn’t remember who you are. He has a complete loss of short-term memory. His wife, Linda, has put him in full-time care.”

According to the Alzheimer’s Association, “Dementia is a general term for a decline in mental ability severe enough to interfere with daily life. Memory loss is an example. Alzheimer’s is the most common type of dementia.” Earlier this year, country music legend Glen Campbell was forced to retire from touring, and was placed by his family into an Alzheimer’s care facility, as a result of his battle with the disease.

AC/DC announced their new album, ‘Rock or Bust,’ on Wednesday, the same day they released a statement about Young’s retirement from the band after 41 years. This will be the band’s first album without Young, and its first since ‘Black Ice’ debuted at No. 1 in 2008.

While the album isn’t due until Dec. 2, a minute-long sample of one of its songs, ‘Play Ball,’ has shown up in the trailer for MLB’s postseason play. The band plans to continue without Young. They’ll launch a tour in support of the new record next year with Malcolm’s nephew Stevie taking his place on record and onstage.