Grab your ol' flip-flops and your sunblock, too, for this fun-in-the-sun story told to the tune of the debut original song by Lennon and Maisy Stella, stars of the hit ABC show Nashville.

Head to www.harpercollinschildrens.com/inthewaves to listen and sing along as the girls gather their boogie boards and sip homemade lemonade.

With a sweet surprise ending, this story will delight readers young and old, and with photos of the girls from years past, this picture book keepsake is the perfect present for any Lennon and Maisy fan.

Lennon and Maisy Stella star in the hit television show Nashville. Born in Ontario, Canada, the sisters now reside in Nashville, Tennessee, with their parents, MaryLynne and Brad Stella (of the country music duo the Stellas). Though Lennon and Maisy have already scored a Top 40 hit with their rendition of "Ho Hey" by the Lumineers, "In the Waves" is their first released original song.

Steve Bjorkman has illustrated nearly one hundred picture books, including the New York Times bestseller Dirt on My Shirt by Jeff Foxworthy. He has also sold millions of greeting cards through Recycled Paper Greetings with his brother, Carl. Steve lives with his wife in Irvine, California.

Lennon and Maisy Stella star in the hit television show Nashville. Born in Ontario, Canada, the sisters now reside in Nashville, Tennessee, with their parents, MaryLynne and Brad Stella (of the country music duo the Stellas). Though Lennon and Maisy have already scored a Top 40 hit with their rendition of "Ho Hey" by the Lumineers, "In the Waves" is their first released original song.