This week on "Sunday Morning" (January 26)

GUEST HOST: Lee Cowan

WATCH THE FULL JANUARY 26 EPISODE!

COVER STORY:  | Watch VideoConductor Gustavo Dudamel, music director of the Los Angeles Philharmonic, is a rock star of the classical world, and he brings that star power when he leads young musicians in schools and colleges across the country. An ambassador of the sublime, he talks with John Dickerson about the transformative power of music, and shares his infectious excitement in performances that transmit the necessity of making art a part of your life.

For more info:

gustavodudamel.comLos Angeles PhilharmonicTrenton Music Makers

     HARTMAN: Strike up the band! (Video)Third grader Henry Boyer, of Howell, Michigan, was so blown away by the University of Michigan marching band that he wrote a letter to them saying how he'd love to sign up someday – approximately in 2029. Their response struck a major chord in this young man's life. Steve Hartman reports.   

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The boys of the Madagascar a capella group Zaza Kanto. Back row, from left: Jimmy, Rija, Taheri and Tojo. Front row from left: Rivo, Njato, Thierry and Aitra. Zaza Kanto

MUSIC: From the slums of Madagascar arise young boys' songs of joy | Watch VideoIn the capital of Madagascar, an island nation where nearly 80 percent of people eke out a living on less than $2 a day, an unexpected sound emerges from the slums of the capital, Antananarivo: Zaza Kanto, an a capella group of boys, ages 11 to 16, whose joyful sounds and viral videos have elevated them to national fame. They've also earned praise from Fredo Austin, of the band Freedom's Boombox, who mentored the young men as part of an exchange program called American Music Abroad. Seth Doane reports.

For more info:

zazakanto.comDonate to the Zaza Kanto FundZaza Kanto - Underground Boys of Tana (YouTube Channel)Freedom's BoomboxAmerican Music Abroad

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Because of the debilitating symptoms of Meniere's Disease, which has affected his hearing, the frontman of Huey Lewis and the News says their upcoming album, "Weather," will likely be their last. CBS News

MUSIC:  Huey Lewis on his hearing loss | Watch VideoHuey Lewis and the News are in the mood to celebrate, joking about their age as they prepare for the release of what is almost certainly their last album, titled "Weather." At 69, Lewis, who has performed in bands for most of his life, had no intention of slowing down, but his diagnosis of Meniere's Disease – a hearing disorder which has affected his voice – has made the decision for him. John Blackstone reports.

For more info:

hueylewisandthenews.com"Weather" by Huey Lewis and the News (BMG), to be released February 14; pre-order at AmazonBarnes & NobleGoogle Play and iTunes

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Grammy Award-nominee DJ Khaled (right), with correspondent Kelefa Sanneh. CBS News

MUSIC:  The multi-talented and persuasively confident DJ Khaled | Watch VideoDJ Khaled has worked with some of the biggest artists in music (Rihanna, Justin Bieber, Drake), and he went on tour as Beyoncé's opening act twice. His songs are all-star collaborations, and he's been making hits for more than a decade. The son of Palestinian immigrants, he's a radio DJ, producer and New York Times bestselling author who is nominated for a Grammy for the song "Higher," a partnership with John Legend and rapper Nipsey Hussle. Kelefa Sanneh sits down with the man who calls himself the "Quincy Jones of hip hop."

For more info:

Follow @DJKhaled on TwitterFacebookInstagram and YouTube

     PASSAGE: They made music | Watch Video"Sunday Morning" remembers just some of the talented musicians we've lost since last year's Grammy Awards ceremony.

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Songwriter Allee Willis. CBS News

MUSIC: Remembering songwriter Allee Willis | Watch VideoAllee Willis grew up in Detroit and was raised on the sounds of Motown, though she never learned to play music. After recording an album in 1974, Willis turned her focus to songwriting, creating hits for such artists as Bonnie Raitt, Ray Charles, Sister Sledge, Cyndi Lauper, Earth, Wind & Fire, and Patti LaBelle (which won her a Grammy). She also earned a second Grammy, and a Tony Award nomination, for the Broadway musical "The Color Purple." Nancy Giles talked last year with Willis, who died last month at age 72.

For more info:

alleewillis.com

    NATURE: Songbirds in Texas (Extended Video)"Sunday Morning" attends a concert by migratory songbirds in High Island, Texas, on the Gulf Coast. Videographer: Judith Lehmberg.       

WEB EXCLUSIVES:

      CALENDAR: Week of January 27 | Watch Video"Sunday Morning" takes a look at some notable events of the week ahead. Lee Cowan reports.

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An orangutan in the Fort Worth zoo.

NATURE UP CLOSE: Are humans really the smartest species?Attributing human actions and thoughts to non-human animals that appear to mimic our behavior may be fanciful, but we may be getting it backwards.

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Andy Warhol's "Mao" at the Orange County Museum of Art (OCMA) in Santa Ana, California. Orange County Museum of Art

TAKE FIVE: Arts & events around the U.S. (January 24)Check out the "Sunday Morning" listings of events this coming week.           

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Supreme Court allows controversial "public charge" immigration rule

Drake University in Iowa holds "mock caucus" ahead of the real thing

Trump expected to unveil Mideast peace plan as Israeli leaders visit