Congrats to Ke Chen et al. for the latest publication in J. Am. Chem. Soc. We have developed a dinickel-complex-catalyzed 1,4-selective hydroarylation of 1,3-dienes, showing unique reactivity to switch classic 4,3-selectivity using mono-Ni catalysts. With MeOH as the hydrogen source, a variety of thermodynamically less stable Z-olefins were synthesized with high regio- and stereoselectivity.