Comedian and writer Ian Karmel pairs up with his sister Dr. Alisa Karmel to unpack the book they co-authored T-Shirt Swim Club, about growing up fat in a world made for thin people; stand-up comedian Zainab Johnson riffs on being one of 13 children; and Ethio-jazz artist Meklit performs the title track off her new EP "Ethio Blue." Plus, host Luke Burbank and announcer Elena Passarello talk sibling rivalry.