With BTS' upcoming compilation album Proof dropping this Friday, more details have emerged.

The album is said to feature 48 songs, spread across three discs, that are meant to honor the past, present, and future of the K-Pop super group in celebration of the band's ninth anniversary.

While most of the songs included are favorite hits that have been released previously, there will also be three new songs: "Yet To Come," "Run BTS," and "For Youth."

These songs will appear alongside demo versions of the band's past hits on the third disc on the album, which is dedicated to the BTS ARMY, their passionate fans. Meanwhile, the first disc contains best hits, and the second disc is comprised of subunit tracks.

One of the most significant marketing campaigns BTS has released for Proof is the #MyBTStory YouTube shorts challenge.

In addition, a 35-second teaser for "Yet to Come (The Most Beautiful Moment)" was uploaded to the HYBE LABELS YouTube account yesterday.

In a statement cited in Variety, HYBE LABELS said:

 "As BTS celebrates the ninth anniversary of its debut and is about to open a new chapter in their 10th year as artists, 'Proof' was designed to look back on the group's past activities and ruminate on their meaning."

In other BTS news, Variety also announced yesterday that BTS' J-Hope was named one of the headliners for this year's Lollapalooza, making him the first South Korean artists to do so.

Taking place July 28th-31st, J-Hope will close out the festival on Sunday.

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J-Hope won't be the only K-Pop artist at Lollapalooza. Five-member K-Pop group Tomorrow x Together, who are also under HYBE LABELS, will also perform.

Tomorrow x Together is scheduled to perform Saturday, July 30th, making this the band's U.S. festival debut.

In Variety, Lollapalooza founder Perry Farrell said:

"I'm happy to welcome J-Hope and Tomorrow x Together into the Lollapalooza family. These artists have been given great gifts in communication. Their global audience speak different languages, but possess an intense passion for their music.

"Lolla is the place where all music genres live in harmony. These are the superstars of the global phenomenon of K-Pop, and we are so excited to have them at this year's festival."

With so much exciting news about BTS hitting the news this week, are you counting down the days to the release of Proof? We are!!

Proof will be available from 1:00 pm KST on Friday, or midnight EST and 9:00 pm PST on Thursday.

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Tags: BTS Proof BTS J-Hope lollapalooza