At their birthday party, the group of besties paid tribute to their late friend Leona Barnes. They honoured her by sitting a portrait of her on the bench next to them.
The birthday service lasted for 90 minutes, during which there were songs, prayers and the exchange of gifts.
There was also a 30-minute video where each of the women, including the late Barnes, chatted about their lives and friendship. They also offered advice to the younger generations.
"Do unto others as you would have them do unto you," said Underwood.
Barnes' advice was that people should "respect" each other, while Hammett said "don't talk back".
Sage advice, happy birthday ladies!
16 Foods Good For Longevity
Asparagus(01 of17)
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Asparagus is anti-inflammatory and provides digestive support, according to "The Longevity Kitchen," a book that explains the life-extending benefits of healthy foods. (credit:Alamy)
Avocado(02 of17)
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In addition to helping lower levels of bad cholesterol, avocados destroy cancerous and precancerous cells, according to "The Longevity Kitchen." (credit:Alamy)
Basil(03 of17)
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This anti-inflammatory herb has been shown to "slow the growth of disease-causing bacteria" and protect liver cells, according to "The Longevity Kitchen." (credit:Alamy)
Blueberries(04 of17)
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This superfruit is anti-inflammatory and helps improves brain and heart health, wrote Rebecca Katz and Mat Edelson in "The Longevity Kitchen." (credit:Shutterstock)
Coffee(05 of17)
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Drinking more than two cups a day of coffee may help you live longer by offering protection against respiratory problems and heart disease. (credit:Alamy)
Dark Chocolate(06 of17)
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This treat can reduce your blood pressure and improve your heart health. Not surprisingly, studies also show dark chocolate to be a mood enhancer, according to "The Longevity Kitchen." (credit:Alamy)
Garlic(07 of17)
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Garlic may not be good for your breath, but it does help prevent damage to blood vessels, wrote the authors of "The Longevity Kitchen." (credit:Alamy)
Green Tea(08 of17)
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According to "The Longevity Kitchen,"green tea has several major health benefits. The antioxidant found in green tea is useful in treating breast, lung and prostate cancer. Green tea also prevents bad cholesterol from forming and can help you lose weight by suppressing your appetite. (credit:Alamy)
Kale(09 of17)
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"[Kale] goes way off the charts with certain nutrients, providing more than ten times the recommended daily intake of vitamin K, a key regulator of inflammation, and three times the recommended daily intake of vitamin A, which is vital to eye health and maintaining moisture in the skin and mucous membranes," according to "The Longevity Kitchen." Kale can also reduce your cholesterol, and is associated with reduced risk of ovarian, breast and colon cancer. (credit:Shutterstock)
Olive Oil(10 of17)
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Olive oil has several major health benefits: it helps protect the heart, reduces the risk of respiratory, colon, upper GI track and breast cancer, and helps prevent stroke, according to "The Longevity Kitchen." (credit:Alamy)
Pomegranate(11 of17)
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In addition to being anti-inflammatory, pomegranate is good for your cardiovascular health and helps lower blood pressure, wrote the authors of "The Longevity Kitchen." (credit:Getty Images)
Sweet Potato(12 of17)
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As stated in "The Longevity Kitchen," this tasty tuber helps regulate blood pressure, provides support for your immune system and contains nutrients that help reduce the risk of stroke and heart attack. (credit:Alamy)
Thyme(13 of17)
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This fragrant spice helps reduce the risk of cardiovascular disease and cancer, and also helps neutralize common pathogens such as E. Coli, according to "The Longevity Kitchen." (credit:Alamy)
Walnuts(14 of17)
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"Wanuts offer tremendous heart health benefits," the book's authors write. "They reduce inflammation, bad cholesterol (LDL), and risk of blood clots and can help prevent bone loss." (credit:Alamy)
Wild Salmon(15 of17)
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Salmon contins more healthful omega-3 fatty acids than any other fish. Omega-3 fatty acids decrease inflammation throughout the body and may reduce the risk of macular degeneration, which causes blindness. (credit:Alamy)
Yogurt(16 of17)
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As stated in "The Longevity Kitchen," yogurt helps maintain and restore healthy bacteria in our body and fights against conditions such as irritable bowel syndrome, diarrhea and Crohn's disease. (credit:Alamy)
'The Longevity Kitchen'(17 of17)
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"The Longevity Kitchen" contains recipes designed to improve the length and quality of your life, as well as tips for living a healthier life.